-92.55% is the change from 819 to 61
Calculation steps:
[( 61 - 819 ) ÷ 819] x 100 = -92.55%
Formula
Percentage change = [(61 - 819) / 819] x 100
Subtract the new number by the original number
61 - 819 = -758
-758 ÷ 819 = -0.9255189255189256
-0.9255189255189256 x 100 = -92.55%