If Adam's income decreases 30% from $2100 and then increases by 20%, what is his latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$2100 |
Change 1 |
- 30% |
|
|
After 1 |
70% |
100 u |
$1470 |
Change 2 |
|
+ 20 u |
|
After 2 |
|
120 u |
$1764 |
100% of Adam's original income = $2100
1% of Adam's original income
= 2100 ÷ 100
= $21
100% - 30% = 70%
70% of Adam's original income
= 70 x 21
= $1470
70% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 1470
1 u of Adam's new income
= 1470 ÷ 100
= $14.70
100 u + 20 u = 120 u
120 u of Adam's new income
= 120 x 14.70
= $1764
Adam's latest income = $1764
Answer(s): $1764