Change in Income from Investment Multiplier Calculator

Formula

k = 1 ÷ (1 − MPC); ΔY = k × ΔI

Worked example

If MPC is 0.75 and investment rises by 100, the multiplier is 4 and income rises by 400.

The interactive calculator on this page accepts your own question values and displays the final answer with step-by-step working.

Frequently asked questions

What formula does the Multiplier Change in Income Calculator use?

This calculator uses: k = 1 ÷ (1 − MPC); ΔY = k × ΔI. The interactive page shows the working step by step.

Is the Multiplier Change in Income Calculator free?

Yes. It is free to use and does not require a login.

Can I use the calculator for exam preparation?

Yes. Use it to check numerical working and then practise writing the formula, substitution and final answer yourself.

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