Question

How to determine combined % increase and decrease......

Answer 1

Combined how? Like first a %increase happens, and then a % decrease?

Answer 2

I will give you a example.A price rise by 100% one year and 20% next year. What is the combined %?

Answer 3

sorry 10% one year

Answer 4

Ah, I see. Ok, you can do this step by step first and then see how to get it more directly.
An increase of 10% means to multiply by 1.10; then it is increasing by 20% so that is the same as multiplying by 1.20.
Combined, that is multiplying by (1.10)(1.20).

Answer 5

yup ,then how to find % increase?

Answer 6

(1.10)×(1.20) =1.32, a 32% increase.