-79.69% is the change from 773 to 157
Calculation steps:
[( 157 - 773 ) ÷ 773] x 100 = -79.69%
Formula
Percentage change = [(157 - 773) / 773] x 100
Subtract the new number by the original number
157 - 773 = -616
-616 ÷ 773 = -0.796895213454075
-0.796895213454075 x 100 = -79.69%