10% is the change from 150 to 165
Calculation steps:
[( 165 - 150 ) ÷ 150] x 100 = 10%
Formula
Percentage change = [(165 - 150) / 150] x 100
Subtract the new number by the original number
165 - 150 = 15
15 ÷ 150 = 0.1
0.1 x 100 = 10%
Example