If Adam's income decreases 20% from $4200 and then decreases by another 30%, what is the new income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$4200 |
| Change 1 |
- 20% |
|
|
| After 1 |
80% |
100 u |
$3360 |
| Change 2 |
|
- 30 u |
|
| After 2 |
|
70 u |
$2352 |
100% of Adam's original income = $4200
1% of Adam's original income
= 4200 ÷ 100
= $42
100% - 20% = 80%
80% of Adam's original income
= 80 x 42
= $3360
80% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = $3360
1 u of Adam's new income
= 3360 ÷ 100
= $33.60
100 u - 30 u = 70 u
70 u of Adam's new income
= 70 x 33.60
= $2352
Adam's latest income = $2352
Answer(s): $2352
