-90.77% is the change from 520 to 48
Calculation steps:
[( 48 - 520 ) ÷ 520] x 100 = -90.77%
Formula
Percentage change = [(48 - 520) / 520] x 100
Subtract the new number by the original number
48 - 520 = -472
-472 ÷ 520 = -0.9076923076923077
-0.9076923076923077 x 100 = -90.77%