0.65% is the change from 310 to 312
Calculation steps:
[( 312 - 310 ) ÷ 310] x 100 = 0.65%
Formula
Percentage change = [(312 - 310) / 310] x 100
Subtract the new number by the original number
312 - 310 = 2
2 ÷ 310 = 0.0064516129032258064
0.0064516129032258064 x 100 = 0.65%