Question

The income of Amina Bibi was increased by 20% and later decreased by 20% Leto work out the total change of percentage of her income​

Answer 1

Answer:

Let the original income = 100

An increase of 20% implies her income has become 120% of the current income

So the new income = 120/100 X 100 = 120

A decrease of 20% implies her income has become 80% of her current income (which is now 120)

So the new income = 80/ 100 X 120 = 96

If we compare her new income of 96 with her original income 100

total % change in income =96−100 / 100 = - 4%

Hence, her income decreased by 4%

Hope this is helpful for you.