-70.73% is the change from 287 to 84
Calculation steps:
[( 84 - 287 ) ÷ 287] x 100 = -70.73%
Formula
Percentage change = [(84 - 287) / 287] x 100
Subtract the new number by the original number
84 - 287 = -203
-203 ÷ 287 = -0.7073170731707317
-0.7073170731707317 x 100 = -70.73%