-32.72% is the change from 217 to 146
Calculation steps:
[( 146 - 217 ) ÷ 217] x 100 = -32.72%
Formula
Percentage change = [(146 - 217) / 217] x 100
Subtract the new number by the original number
146 - 217 = -71
-71 ÷ 217 = -0.3271889400921659
-0.3271889400921659 x 100 = -32.72%