-24.42% is the change from 217 to 164
Calculation steps:
[( 164 - 217 ) ÷ 217] x 100 = -24.42%
Formula
Percentage change = [(164 - 217) / 217] x 100
Subtract the new number by the original number
164 - 217 = -53
-53 ÷ 217 = -0.24423963133640553
-0.24423963133640553 x 100 = -24.42%