If Adam's income decreases 40% from $800 and then increases by 30%, what is his latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$800 |
Change 1 |
- 40% |
|
|
After 1 |
60% |
100 u |
$480 |
Change 2 |
|
+ 30 u |
|
After 2 |
|
130 u |
$624 |
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
60% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 480
1 u of Adam's new income
= 480 ÷ 100
= $4.80
100 u + 30 u = 130 u
130 u of Adam's new income
= 130 x 4.80
= $624
Adam's latest income = $624
Answer(s): $624