0.64% is the change from 311 to 313
Calculation steps:
[( 313 - 311 ) ÷ 311] x 100 = 0.64%
Formula
Percentage change = [(313 - 311) / 311] x 100
Subtract the new number by the original number
313 - 311 = 2
2 ÷ 311 = 0.006430868167202572
0.006430868167202572 x 100 = 0.64%