If Adam's income decreases 10% from $500 and then increases by 10%, what is Adam's latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$500 |
Change 1 |
- 10% |
|
|
After 1 |
90% |
100 u |
$450 |
Change 2 |
|
+ 10 u |
|
After 2 |
|
110 u |
$495 |
100% of Adam's original income = $500
1% of Adam's original income = 500 ÷ 100 = $5
100% - 10% = 90%
90% of Adam's original income = 90 x 5 = $450
100 u of Adam's new income = $450
1 u of Adam's new income = 450 ÷ 100 = $4.50
100 u + 10 u = 110 u
110% of Adam's new income = 110 x 4.50 = $495
Adam's latest income = $495
Answer(s): $495