8.06% is the change from 645 to 697
Calculation steps:
[( 697 - 645 ) ÷ 645] x 100 = 8.06%
Formula
Percentage change = [(697 - 645) / 645] x 100
Subtract the new number by the original number
697 - 645 = 52
52 ÷ 645 = 0.08062015503875969
0.08062015503875969 x 100 = 8.06%