121.37% is the change from 351 to 777
Calculation steps:
[( 777 - 351 ) ÷ 351] x 100 = 121.37%
Formula
Percentage change = [(777 - 351) / 351] x 100
Subtract the new number by the original number
777 - 351 = 426
426 ÷ 351 = 1.2136752136752136
1.2136752136752136 x 100 = 121.37%