Question

i need help finding the percentage change from 82 to 38

Answer 1

\[\% \Delta = \frac{|a-b|}{a} \times 100\]

a = original number
b = new number

Answer 2

\[\%\Delta = \frac{82 - 38}{82} \times 100\]

Answer 3

\[\% \Delta = 53.6585\]

Answer 4

so which one is the original number

Answer 5

The first number you read is the original number

Answer 6

Think of the original question as asking:

What is the percent change from a to b?

Answer 7

This would mean that 82 = a , 38 = b

Answer 8

so you dont cross multiply

Answer 9

All you do is input the values for a and b into the formula and solve.

Answer 10

ok so i get confused dont knw what number to divide

Answer 11

thanks anyway