If Adam's income increases 50% from $2100 and then falls by 20%, what is his latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$2100 |
Change 1 |
+ 50% |
|
|
After 1 |
150% |
100 u |
$3150 |
Change 2 |
|
- 20 u |
|
After 2 |
|
80 u |
$2520 |
100% of Adam's original income = $2100
1% of Adam's original income
= 2100 ÷ 100
= $21
100% + 50% = 150%
150% of Adam's original income
= 150 x 21
= $3150
150% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 3150
1 u of Adam's new income
= 3150 ÷ 100
= $31.50
100 u - 20 u = 80 u
80 u of Adam's new income
= 80 x 31.50
= $2520
Adam's latest income = $2520
Answer(s): $2520