If Adam's income decreases 40% from $800 and then increases by 40%, what is Adam's latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$800 |
Change 1 |
- 40% |
|
|
After 1 |
60% |
100 u |
$480 |
Change 2 |
|
+ 40 u |
|
After 2 |
|
140 u |
$672 |
100% of Adam's original income = $800
1% of Adam's original income = 800 ÷ 100 = $8
100% - 40% = 60%
60% of Adam's original income = 60 x 8 = $480
100 u of Adam's new income = $480
1 u of Adam's new income = 480 ÷ 100 = $4.80
100 u + 40 u = 140 u
140% of Adam's new income = 140 x 4.80 = $672
Adam's latest income = $672
Answer(s): $672