-39.24% is the change from 869 to 528
Calculation steps:
[( 528 - 869 ) ÷ 869] x 100 = -39.24%
Formula
Percentage change = [(528 - 869) / 869] x 100
Subtract the new number by the original number
528 - 869 = -341
-341 ÷ 869 = -0.3924050632911392
-0.3924050632911392 x 100 = -39.24%