10.29% is the change from 311 to 343
Calculation steps:
[( 343 - 311 ) ÷ 311] x 100 = 10.29%
Formula
Percentage change = [(343 - 311) / 311] x 100
Subtract the new number by the original number
343 - 311 = 32
32 ÷ 311 = 0.10289389067524116
0.10289389067524116 x 100 = 10.29%