-19.35% is the change from 186 to 150
Calculation steps:
[( 150 - 186 ) ÷ 186] x 100 = -19.35%
Formula
Percentage change = [(150 - 186) / 186] x 100
Subtract the new number by the original number
150 - 186 = -36
-36 ÷ 186 = -0.1935483870967742
-0.1935483870967742 x 100 = -19.35%