Question

His hourly wage increased from $15 to $21. What is the percent increase?

Answer 1

Answer: 40% increase

Formula we use here is:
`\frac{(\text{Final}-\text{Start})}{|\text{Start}|} * 100`

Starting Value = 15

Final Value = 21

Insert values into formula:

`= ((21 - 15))/(|15|) * 100`

Subtract 21 and 15. Because they are in brackets, and anything in brackets must be done first according to BIDMAS or BODMAS.

`= (6)/(15) * 100`

6 divided by 15 = 0.4

0.4 is your increase.

Multiplying it by 100 makes it into a percentage.

`= 0.4 * 100`

= 40%