-94.26% is the change from 819 to 47
Calculation steps:
[( 47 - 819 ) ÷ 819] x 100 = -94.26%
Formula
Percentage change = [(47 - 819) / 819] x 100
Subtract the new number by the original number
47 - 819 = -772
-772 ÷ 819 = -0.9426129426129426
-0.9426129426129426 x 100 = -94.26%