-36% is the change from 825 to 528
Calculation steps:
[( 528 - 825 ) ÷ 825] x 100 = -36%
Formula
Percentage change = [(528 - 825) / 825] x 100
Subtract the new number by the original number
528 - 825 = -297
-297 ÷ 825 = -0.36
-0.36 x 100 = -36%
Example