-65.63% is the change from 288 to 99
Calculation steps:
[( 99 - 288 ) ÷ 288] x 100 = -65.63%
Formula
Percentage change = [(99 - 288) / 288] x 100
Subtract the new number by the original number
99 - 288 = -189
-189 ÷ 288 = -0.65625
-0.65625 x 100 = -65.63%