12.94% is the change from 773 to 873
Calculation steps:
[( 873 - 773 ) ÷ 773] x 100 = 12.94%
Formula
Percentage change = [(873 - 773) / 773] x 100
Subtract the new number by the original number
873 - 773 = 100
100 ÷ 773 = 0.129366106080207
0.129366106080207 x 100 = 12.94%