-65.26% is the change from 285 to 99
Calculation steps:
[( 99 - 285 ) ÷ 285] x 100 = -65.26%
Formula
Percentage change = [(99 - 285) / 285] x 100
Subtract the new number by the original number
99 - 285 = -186
-186 ÷ 285 = -0.6526315789473685
-0.6526315789473685 x 100 = -65.26%