If Adam's income decreases 40% from $900 and then increases by 40%, what is Adam's latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$900 |
Change 1 |
- 40% |
|
|
After 1 |
60% |
100 u |
$540 |
Change 2 |
|
+ 40 u |
|
After 2 |
|
140 u |
$756 |
100% of Adam's original income = $900
1% of Adam's original income = 900 ÷ 100 = $9
100% - 40% = 60%
60% of Adam's original income = 60 x 9 = $540
100 u of Adam's new income = $540
1 u of Adam's new income = 540 ÷ 100 = $5.40
100 u + 40 u = 140 u
140% of Adam's new income = 140 x 5.40 = $756
Adam's latest income = $756
Answer(s): $756