13.45% is the change from 773 to 877
Calculation steps:
[( 877 - 773 ) ÷ 773] x 100 = 13.45%
Formula
Percentage change = [(877 - 773) / 773] x 100
Subtract the new number by the original number
877 - 773 = 104
104 ÷ 773 = 0.13454075032341525
0.13454075032341525 x 100 = 13.45%