-84.93% is the change from 564 to 85
Calculation steps:
[( 85 - 564 ) ÷ 564] x 100 = -84.93%
Formula
Percentage change = [(85 - 564) / 564] x 100
Subtract the new number by the original number
85 - 564 = -479
-479 ÷ 564 = -0.849290780141844
-0.849290780141844 x 100 = -84.93%