-84.09% is the change from 528 to 84
Calculation steps:
[( 84 - 528 ) ÷ 528] x 100 = -84.09%
Formula
Percentage change = [(84 - 528) / 528] x 100
Subtract the new number by the original number
84 - 528 = -444
-444 ÷ 528 = -0.8409090909090909
-0.8409090909090909 x 100 = -84.09%