32.9% is the change from 310 to 412
Calculation steps:
[( 412 - 310 ) ÷ 310] x 100 = 32.9%
Formula
Percentage change = [(412 - 310) / 310] x 100
Subtract the new number by the original number
412 - 310 = 102
102 ÷ 310 = 0.32903225806451614
0.32903225806451614 x 100 = 32.9%