1.09% is the change from 644 to 651
Calculation steps:
[( 651 - 644 ) ÷ 644] x 100 = 1.09%
Formula
Percentage change = [(651 - 644) / 644] x 100
Subtract the new number by the original number
651 - 644 = 7
7 ÷ 644 = 0.010869565217391304
0.010869565217391304 x 100 = 1.09%