-83.93% is the change from 560 to 90
Calculation steps:
[( 90 - 560 ) ÷ 560] x 100 = -83.93%
Formula
Percentage change = [(90 - 560) / 560] x 100
Subtract the new number by the original number
90 - 560 = -470
-470 ÷ 560 = -0.8392857142857143
-0.8392857142857143 x 100 = -83.93%