-78.2% is the change from 812 to 177
Calculation steps:
[( 177 - 812 ) ÷ 812] x 100 = -78.2%
Formula
Percentage change = [(177 - 812) / 812] x 100
Subtract the new number by the original number
177 - 812 = -635
-635 ÷ 812 = -0.7820197044334976
-0.7820197044334976 x 100 = -78.2%