-99.74% is the change from 773 to 2
Calculation steps:
[( 2 - 773 ) ÷ 773] x 100 = -99.74%
Formula
Percentage change = [(2 - 773) / 773] x 100
Subtract the new number by the original number
2 - 773 = -771
-771 ÷ 773 = -0.9974126778783958
-0.9974126778783958 x 100 = -99.74%