-30.85% is the change from 752 to 520
Calculation steps:
[( 520 - 752 ) ÷ 752] x 100 = -30.85%
Formula
Percentage change = [(520 - 752) / 752] x 100
Subtract the new number by the original number
520 - 752 = -232
-232 ÷ 752 = -0.30851063829787234
-0.30851063829787234 x 100 = -30.85%