-31.19% is the change from 218 to 150
Calculation steps:
[( 150 - 218 ) ÷ 218] x 100 = -31.19%
Formula
Percentage change = [(150 - 218) / 218] x 100
Subtract the new number by the original number
150 - 218 = -68
-68 ÷ 218 = -0.3119266055045872
-0.3119266055045872 x 100 = -31.19%