If Adam's income decreases 10% from $4400 and then increases by 20%, what is his latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$4400 |
| Change 1 |
- 10% |
|
|
| After 1 |
90% |
100 u |
$3960 |
| Change 2 |
|
+ 20 u |
|
| After 2 |
|
120 u |
$4752 |
100% of Adam's original income = $4400
1% of Adam's original income
= 4400 ÷ 100
= $44
100% - 10% = 90%
90% of Adam's original income
= 90 x 44
= $3960
90% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 3960
1 u of Adam's new income
= 3960 ÷ 100
= $39.60
100 u + 20 u = 120 u
120 u of Adam's new income
= 120 x 39.60
= $4752
Adam's latest income = $4752
Answer(s): $4752
