7.88% is the change from 609 to 657
Calculation steps:
[( 657 - 609 ) ÷ 609] x 100 = 7.88%
Formula
Percentage change = [(657 - 609) / 609] x 100
Subtract the new number by the original number
657 - 609 = 48
48 ÷ 609 = 0.07881773399014778
0.07881773399014778 x 100 = 7.88%