-23.96% is the change from 217 to 165
Calculation steps:
[( 165 - 217 ) ÷ 217] x 100 = -23.96%
Formula
Percentage change = [(165 - 217) / 217] x 100
Subtract the new number by the original number
165 - 217 = -52
-52 ÷ 217 = -0.23963133640552994
-0.23963133640552994 x 100 = -23.96%