Question

Why is a 10% decrease of 1530= 1377
But a 10% increase of 1377 is not equal to1530

Answer 1

10% of 1530 doesn't equal 10% of 1377.

Explanation:

10% of 1530 = 153

10% of 1377 = 137.7

So 1530-153=1377

and 1377+137.7= 1514.7