If Adam's income decreases 30% from $600 and then increases by 30%, what is Adam's latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$600 |
Change 1 |
- 30% |
|
|
After 1 |
70% |
100 u |
$420 |
Change 2 |
|
+ 30 u |
|
After 2 |
|
130 u |
$546 |
100% of Adam's original income = $600
1% of Adam's original income = 600 ÷ 100 = $6
100% - 30% = 70%
70% of Adam's original income = 70 x 6 = $420
100 u of Adam's new income = $420
1 u of Adam's new income = 420 ÷ 100 = $4.20
100 u + 30 u = 130 u
130% of Adam's new income = 130 x 4.20 = $546
Adam's latest income = $546
Answer(s): $546