-21.25% is the change from 287 to 226
Calculation steps:
[( 226 - 287 ) ÷ 287] x 100 = -21.25%
Formula
Percentage change = [(226 - 287) / 287] x 100
Subtract the new number by the original number
226 - 287 = -61
-61 ÷ 287 = -0.21254355400696864
-0.21254355400696864 x 100 = -21.25%