-9.79% is the change from 235 to 212
Calculation steps:
[( 212 - 235 ) ÷ 235] x 100 = -9.79%
Formula
Percentage change = [(212 - 235) / 235] x 100
Subtract the new number by the original number
212 - 235 = -23
-23 ÷ 235 = -0.09787234042553192
-0.09787234042553192 x 100 = -9.79%