-30.56% is the change from 216 to 150
Calculation steps:
[( 150 - 216 ) ÷ 216] x 100 = -30.56%
Formula
Percentage change = [(150 - 216) / 216] x 100
Subtract the new number by the original number
150 - 216 = -66
-66 ÷ 216 = -0.3055555555555556
-0.3055555555555556 x 100 = -30.56%