If Adam's income increases 30% from $3600 and then falls by 20%, what is his latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$3600 |
| Change 1 |
+ 30% |
|
|
| After 1 |
130% |
100 u |
$4680 |
| Change 2 |
|
- 20 u |
|
| After 2 |
|
80 u |
$3744 |
100% of Adam's original income = $3600
1% of Adam's original income
= 3600 ÷ 100
= $36
100% + 30% = 130%
130% of Adam's original income
= 130 x 36
= $4680
130% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 4680
1 u of Adam's new income
= 4680 ÷ 100
= $46.80
100 u - 20 u = 80 u
80 u of Adam's new income
= 80 x 46.80
= $3744
Adam's latest income = $3744
Answer(s): $3744
