-26.83% is the change from 287 to 210
Calculation steps:
[( 210 - 287 ) ÷ 287] x 100 = -26.83%
Formula
Percentage change = [(210 - 287) / 287] x 100
Subtract the new number by the original number
210 - 287 = -77
-77 ÷ 287 = -0.2682926829268293
-0.2682926829268293 x 100 = -26.83%