0.31% is the change from 649 to 651
Calculation steps:
[( 651 - 649 ) ÷ 649] x 100 = 0.31%
Formula
Percentage change = [(651 - 649) / 649] x 100
Subtract the new number by the original number
651 - 649 = 2
2 ÷ 649 = 0.0030816640986132513
0.0030816640986132513 x 100 = 0.31%