-88.93% is the change from 506 to 56
Calculation steps:
[( 56 - 506 ) ÷ 506] x 100 = -88.93%
Formula
Percentage change = [(56 - 506) / 506] x 100
Subtract the new number by the original number
56 - 506 = -450
-450 ÷ 506 = -0.8893280632411067
-0.8893280632411067 x 100 = -88.93%