-91.2% is the change from 568 to 50
Calculation steps:
[( 50 - 568 ) ÷ 568] x 100 = -91.2%
Formula
Percentage change = [(50 - 568) / 568] x 100
Subtract the new number by the original number
50 - 568 = -518
-518 ÷ 568 = -0.9119718309859155
-0.9119718309859155 x 100 = -91.2%