-87.56% is the change from 217 to 27
Calculation steps:
[( 27 - 217 ) ÷ 217] x 100 = -87.56%
Formula
Percentage change = [(27 - 217) / 217] x 100
Subtract the new number by the original number
27 - 217 = -190
-190 ÷ 217 = -0.8755760368663594
-0.8755760368663594 x 100 = -87.56%