-82.78% is the change from 575 to 99
Calculation steps:
[( 99 - 575 ) ÷ 575] x 100 = -82.78%
Formula
Percentage change = [(99 - 575) / 575] x 100
Subtract the new number by the original number
99 - 575 = -476
-476 ÷ 575 = -0.8278260869565217
-0.8278260869565217 x 100 = -82.78%