6.53% is the change from 291 to 310
Calculation steps:
[( 310 - 291 ) ÷ 291] x 100 = 6.53%
Formula
Percentage change = [(310 - 291) / 291] x 100
Subtract the new number by the original number
310 - 291 = 19
19 ÷ 291 = 0.06529209621993128
0.06529209621993128 x 100 = 6.53%