-93.4% is the change from 773 to 51
Calculation steps:
[( 51 - 773 ) ÷ 773] x 100 = -93.4%
Formula
Percentage change = [(51 - 773) / 773] x 100
Subtract the new number by the original number
51 - 773 = -722
-722 ÷ 773 = -0.9340232858990944
-0.9340232858990944 x 100 = -93.4%