If Adam's income increases 10% from $2900 and then falls by 30%, what is his latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$2900 |
| Change 1 |
+ 10% |
|
|
| After 1 |
110% |
100 u |
$3190 |
| Change 2 |
|
- 30 u |
|
| After 2 |
|
70 u |
$2233 |
100% of Adam's original income = $2900
1% of Adam's original income
= 2900 ÷ 100
= $29
100% + 10% = 110%
110% of Adam's original income
= 110 x 29
= $3190
110% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 3190
1 u of Adam's new income
= 3190 ÷ 100
= $31.90
100 u - 30 u = 70 u
70 u of Adam's new income
= 70 x 31.90
= $2233
Adam's latest income = $2233
Answer(s): $2233
