39.87% is the change from 311 to 435
Calculation steps:
[( 435 - 311 ) ÷ 311] x 100 = 39.87%
Formula
Percentage change = [(435 - 311) / 311] x 100
Subtract the new number by the original number
435 - 311 = 124
124 ÷ 311 = 0.3987138263665595
0.3987138263665595 x 100 = 39.87%