-70.64% is the change from 528 to 155
Calculation steps:
[( 155 - 528 ) ÷ 528] x 100 = -70.64%
Formula
Percentage change = [(155 - 528) / 528] x 100
Subtract the new number by the original number
155 - 528 = -373
-373 ÷ 528 = -0.7064393939393939
-0.7064393939393939 x 100 = -70.64%