-31.07% is the change from 766 to 528
Calculation steps:
[( 528 - 766 ) ÷ 766] x 100 = -31.07%
Formula
Percentage change = [(528 - 766) / 766] x 100
Subtract the new number by the original number
528 - 766 = -238
-238 ÷ 766 = -0.31070496083550914
-0.31070496083550914 x 100 = -31.07%