-96.52% is the change from 287 to 10
Calculation steps:
[( 10 - 287 ) ÷ 287] x 100 = -96.52%
Formula
Percentage change = [(10 - 287) / 287] x 100
Subtract the new number by the original number
10 - 287 = -277
-277 ÷ 287 = -0.9651567944250871
-0.9651567944250871 x 100 = -96.52%