Operations Management and Strategic Management · Productivity Management and Quality Management

Productivity: Concept and Measurement for CMA Intermediate

Updated 10 October 2026 · Fact-checked

Productivity is the ratio of output to input. Single factor productivity divides output by one input, such as labour hours. Multifactor productivity divides output by a group of inputs. Total productivity divides total output by total input, with all values in rupees. Compare the ratio with a base period or standard to interpret it.

Understand Productivity: Concept and Measurement

Productivity tells you how well an organisation turns inputs into outputs. Inputs are resources like labour, materials, machines, power and capital. Outputs are the goods made or services delivered. The formula is simple: Productivity = Output ÷ Input.

Productivity is not the same as production. Production is how much you make. Productivity is how much you make for each unit of resource used. A factory can raise production by hiring more workers, and productivity may still fall.

There are three types you must know. Single factor (partial) productivity relates output to one input only, for example units per labour hour or units per kg of material. Multifactor productivity relates output to a selected group of inputs, for example labour plus materials. Total productivity relates total output to the total of all inputs used, with everything expressed in rupees so unlike items can be added.

A single ratio means little on its own. You interpret productivity by comparing it with an earlier period, a standard, another plant or a competitor. A rise shows better use of resources. A fall shows waste, idle time or poor methods. Partial ratios are easy to compute but can mislead: labour productivity may rise only because you replaced workers with costly machines. Total productivity guards against this because it captures all inputs.

Productivity change is usually shown as an index or a percentage change over the base period.

Key rules to remember

Basic productivity: Productivity = Output ÷ Input; Output and input must be in consistent units or values.
Single factor productivity: Single factor productivity = Output ÷ One input (e.g. labour hours, kg of material, machine hours); Also called partial productivity. Result is in units per unit of that input.
Multifactor productivity: Multifactor productivity = Output ÷ (Labour + Material + Energy + any other selected inputs); Inputs must be in the same unit, normally rupees. It leaves out some inputs, such as capital, unless you include them.
Total productivity: Total productivity = Total output ÷ Total input; Both in rupees. Output is value of goods or services produced; input is the sum of all resource costs.
Productivity index: Productivity index = (Current productivity ÷ Base productivity) × 100; Above 100 means improvement over the base period.
Percentage change: % change = (Current − Base) ÷ Base × 100; Use the same type of productivity ratio in both periods.

How to solve Productivity: Concept and Measurement questions

Use this method for any question that asks you to calculate or compare productivity.

1Read which type is asked: single factor, multifactor or total. Underline the input(s) to be used.
2Write the output figure. If output is in units and inputs are in rupees, convert output to rupees using the selling price or the value given.
3List the inputs and bring them to one unit. For multifactor and total productivity, convert every input into rupees.
4Write the formula first, then substitute. Show the numerator and denominator clearly.
5Calculate for each period or each plant being compared. Keep at least two decimal places where needed.
6Compute the change, index or percentage change against the base period.
7State the interpretation in one or two lines: whether efficiency improved, and a probable reason such as better methods, less idle time or higher machine use.
8If a ratio is partial, mention its limit: it ignores other inputs.

Quickest way: Table and ratio method

When to use it: Use it when the question gives two periods or two plants and asks you to compare productivity.

Draw two columns, Base and Current, and list output and each input in rupees.
Add the inputs for the denominator where needed.
Divide once for each column.
Find the percentage change from the two ratios.
Write one line of interpretation.

Common mistakes in Productivity: Concept and Measurement

Adding labour hours to material cost to get total input.
Students forget that unlike units cannot be added.
Fix: Convert every input to rupees before adding for multifactor or total productivity.
Using total production instead of productivity as the answer.
The two words look alike.
Fix: Always divide output by input. Productivity is a ratio, not a quantity.
Calculating the percentage change on the current figure instead of the base.
Students divide by the larger or latest number.
Fix: Divide the difference by the base period productivity.
Comparing different types of productivity across periods.
Students use labour productivity in one year and total productivity in another.
Fix: Use the same ratio and the same units in both periods.
Leaving out an input such as power or overhead in total productivity.
Students stop at labour and material.
Fix: Tick off every input in the question before adding. Total productivity needs all of them.
Writing only numbers with no interpretation.
Students treat it as a pure calculation topic.
Fix: End with a line stating whether productivity improved and what it means for the business.

Worked examples

Example 1

Sharma Textiles produced 12,000 metres of cloth in March using 3,000 labour hours and 6,000 machine hours. In April it produced 14,400 metres using 3,200 labour hours and 6,400 machine hours. Calculate labour productivity and machine productivity for both months, and the percentage change in labour productivity.

Show the solution

Labour productivity, March = 12,000 ÷ 3,000 = 4 metres per labour hour.
Labour productivity, April = 14,400 ÷ 3,200 = 4.5 metres per labour hour.
Machine productivity, March = 12,000 ÷ 6,000 = 2 metres per machine hour.
Machine productivity, April = 14,400 ÷ 6,400 = 2.25 metres per machine hour.
Change in labour productivity = (4.5 − 4) ÷ 4 × 100 = 12.5%.

Answer: Labour productivity rose from 4 to 4.5 metres per hour (up 12.5%). Machine productivity rose from 2 to 2.25 metres per hour. Both single factor ratios improved in April.

Example 2

Kaveri Components made 5,000 units in the base year and 6,000 units in the current year, each valued at ₹200. Inputs in the base year: labour ₹3,00,000, material ₹4,00,000, overheads ₹1,50,000. Inputs in the current year: labour ₹3,30,000, material ₹4,80,000, overheads ₹1,70,000. Find total productivity for both years and the percentage change. Also find multifactor productivity of labour and material for the current year.

Show the solution

Base year output = 5,000 × ₹200 = ₹10,00,000.
Base year input = 3,00,000 + 4,00,000 + 1,50,000 = ₹8,50,000.
Base total productivity = 10,00,000 ÷ 8,50,000 = 1.1765.
Current output = 6,000 × ₹200 = ₹12,00,000.
Current input = 3,30,000 + 4,80,000 + 1,70,000 = ₹9,80,000.
Current total productivity = 12,00,000 ÷ 9,80,000 = 1.2245.
Percentage change = (1.2245 − 1.1765) ÷ 1.1765 × 100 = 4.08% approximately.
Multifactor (labour + material), current = 12,00,000 ÷ (3,30,000 + 4,80,000) = 12,00,000 ÷ 8,10,000 = 1.4815.

Answer: Total productivity rose from 1.18 to 1.22, an increase of about 4.08%. Current multifactor productivity of labour and material is 1.48. Output value grew faster than total input cost, so resources were used more efficiently.

Exam tips

Check units first. If a question mixes units, hours and rupees, convert everything to rupees before adding.
In MCQs, watch for the base period. The percentage change is always on the base.
For written answers, show the formula, the substitution and a closing interpretation to earn step marks.
Be ready to explain in two lines why total productivity is a better measure than a partial ratio.
When comparing plants, use the same ratio for each plant and state which one performs better.

Practice questions from Productivity Management and Quality Management

Productivity: Concept and Measurement: frequently asked questions

What is the difference between single factor and multifactor productivity?

Single factor productivity relates output to one input, such as labour hours. Multifactor productivity relates output to a group of inputs, such as labour and material, all in rupees. Multifactor gives a wider picture but still leaves out inputs you do not include.

How do I calculate total productivity?

Divide the total value of output by the total value of all inputs. Convert everything to rupees first. A result above 1 means output is worth more than the resources used.

Is productivity the same as efficiency?

They are related but not identical. Productivity is the ratio of output to input. Efficiency compares actual performance with a standard or best possible level. Exam questions usually ask you to calculate the ratio and comment on the change.

Why can labour productivity mislead?

It ignores other inputs. If you buy costly machines and cut workers, labour productivity rises even if total cost per unit also rises. Total productivity shows the full effect.