If Adam's income increases 10% from $3800 and then falls by 20%, what is his latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$3800 |
| Change 1 |
+ 10% |
|
|
| After 1 |
110% |
100 u |
$4180 |
| Change 2 |
|
- 20 u |
|
| After 2 |
|
80 u |
$3344 |
100% of Adam's original income = $3800
1% of Adam's original income
= 3800 ÷ 100
= $38
100% + 10% = 110%
110% of Adam's original income
= 110 x 38
= $4180
110% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 4180
1 u of Adam's new income
= 4180 ÷ 100
= $41.80
100 u - 20 u = 80 u
80 u of Adam's new income
= 80 x 41.80
= $3344
Adam's latest income = $3344
Answer(s): $3344
