6.26% is the change from 607 to 645
Calculation steps:
[( 645 - 607 ) ÷ 607] x 100 = 6.26%
Formula
Percentage change = [(645 - 607) / 607] x 100
Subtract the new number by the original number
645 - 607 = 38
38 ÷ 607 = 0.06260296540362438
0.06260296540362438 x 100 = 6.26%