-31.36% is the change from 287 to 197
Calculation steps:
[( 197 - 287 ) ÷ 287] x 100 = -31.36%
Formula
Percentage change = [(197 - 287) / 287] x 100
Subtract the new number by the original number
197 - 287 = -90
-90 ÷ 287 = -0.313588850174216
-0.313588850174216 x 100 = -31.36%