-80.68% is the change from 528 to 102
Calculation steps:
[( 102 - 528 ) ÷ 528] x 100 = -80.68%
Formula
Percentage change = [(102 - 528) / 528] x 100
Subtract the new number by the original number
102 - 528 = -426
-426 ÷ 528 = -0.8068181818181818
-0.8068181818181818 x 100 = -80.68%