-8.09% is the change from 235 to 216
Calculation steps:
[( 216 - 235 ) ÷ 235] x 100 = -8.09%
Formula
Percentage change = [(216 - 235) / 235] x 100
Subtract the new number by the original number
216 - 235 = -19
-19 ÷ 235 = -0.08085106382978724
-0.08085106382978724 x 100 = -8.09%