-95.19% is the change from 811 to 39
Calculation steps:
[( 39 - 811 ) ÷ 811] x 100 = -95.19%
Formula
Percentage change = [(39 - 811) / 811] x 100
Subtract the new number by the original number
39 - 811 = -772
-772 ÷ 811 = -0.9519112207151664
-0.9519112207151664 x 100 = -95.19%