10% is the change from 310 to 341
Calculation steps:
[( 341 - 310 ) ÷ 310] x 100 = 10%
Formula
Percentage change = [(341 - 310) / 310] x 100
Subtract the new number by the original number
341 - 310 = 31
31 ÷ 310 = 0.1
0.1 x 100 = 10%
Example