-21.6% is the change from 287 to 225
Calculation steps:
[( 225 - 287 ) ÷ 287] x 100 = -21.6%
Formula
Percentage change = [(225 - 287) / 287] x 100
Subtract the new number by the original number
225 - 287 = -62
-62 ÷ 287 = -0.21602787456445993
-0.21602787456445993 x 100 = -21.6%