-74.19% is the change from 217 to 56
Calculation steps:
[( 56 - 217 ) ÷ 217] x 100 = -74.19%
Formula
Percentage change = [(56 - 217) / 217] x 100
Subtract the new number by the original number
56 - 217 = -161
-161 ÷ 217 = -0.7419354838709677
-0.7419354838709677 x 100 = -74.19%