If Adam's income increases 40% from $800 and then falls by 30%, what is his latest income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$800 |
Change 1 |
+ 40% |
|
|
After 1 |
140% |
100 u |
$1120 |
Change 2 |
|
- 30 u |
|
After 2 |
|
70 u |
$784 |
100% of Adam's original income = $800
1% of Adam's original income
= 800 ÷ 100
= $8
100% + 40% = 140%
140% of Adam's original income
= 140 x 8
= $1120
140% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 1120
1 u of Adam's new income
= 1120 ÷ 100
= $11.20
100 u - 30 u = 70 u
70 u of Adam's new income
= 70 x 11.20
= $784
Adam's latest income = $784
Answer(s): $784