35.81% is the change from 310 to 421
Calculation steps:
[( 421 - 310 ) ÷ 310] x 100 = 35.81%
Formula
Percentage change = [(421 - 310) / 310] x 100
Subtract the new number by the original number
421 - 310 = 111
111 ÷ 310 = 0.3580645161290323
0.3580645161290323 x 100 = 35.81%