1.64% is the change from 610 to 620
Calculation steps:
[( 620 - 610 ) ÷ 610] x 100 = 1.64%
Formula
Percentage change = [(620 - 610) / 610] x 100
Subtract the new number by the original number
620 - 610 = 10
10 ÷ 610 = 0.01639344262295082
0.01639344262295082 x 100 = 1.64%