If Adam's income decreases 20% from $800 and then increases by 50%, what is his latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$800 |
Change 1 |
- 20% |
|
|
After 1 |
80% |
100 u |
$640 |
Change 2 |
|
+ 50 u |
|
After 2 |
|
150 u |
$960 |
100% of Adam's original income = $800
1% of Adam's original income
= 800 ÷ 100
= $8
100% - 20% = 80%
80% of Adam's original income
= 80 x 8
= $640
80% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 640
1 u of Adam's new income
= 640 ÷ 100
= $6.40
100 u + 50 u = 150 u
150 u of Adam's new income
= 150 x 6.40
= $960
Adam's latest income = $960
Answer(s): $960