Question

if something cost 30$ and the price increased to $40 what is the percentage increase?

Answer 1

40-30=?

Answer 2

no the percentage increase

Answer 3

Ok

Answer 4

40-30=10
Right?

Answer 5

(10/30)*100%=?

Answer 6

yes but that does not give me the percentage change

Answer 7

ty

Answer 8

U r most welcome!!

Answer 9

wait why would i dived by 30 and not 40?

Answer 10

@shamim

Answer 11

Because you use the "original" price in the formula.
:-)

Answer 12

oh ok that makes since

Answer 13

$$\Huge \dfrac{percent-of-change}{100} = \dfrac{change-in-price}{original-price}$$