-85.28% is the change from 564 to 83
Calculation steps:
[( 83 - 564 ) ÷ 564] x 100 = -85.28%
Formula
Percentage change = [(83 - 564) / 564] x 100
Subtract the new number by the original number
83 - 564 = -481
-481 ÷ 564 = -0.8528368794326241
-0.8528368794326241 x 100 = -85.28%