-90.72% is the change from 528 to 49
Calculation steps:
[( 49 - 528 ) ÷ 528] x 100 = -90.72%
Formula
Percentage change = [(49 - 528) / 528] x 100
Subtract the new number by the original number
49 - 528 = -479
-479 ÷ 528 = -0.9071969696969697
-0.9071969696969697 x 100 = -90.72%