-7.33% is the change from 150 to 139
Calculation steps:
[( 139 - 150 ) ÷ 150] x 100 = -7.33%
Formula
Percentage change = [(139 - 150) / 150] x 100
Subtract the new number by the original number
139 - 150 = -11
-11 ÷ 150 = -0.07333333333333333
-0.07333333333333333 x 100 = -7.33%