-88.93% is the change from 515 to 57
Calculation steps:
[( 57 - 515 ) ÷ 515] x 100 = -88.93%
Formula
Percentage change = [(57 - 515) / 515] x 100
Subtract the new number by the original number
57 - 515 = -458
-458 ÷ 515 = -0.8893203883495145
-0.8893203883495145 x 100 = -88.93%