10.97% is the change from 620 to 688
Calculation steps:
[( 688 - 620 ) ÷ 620] x 100 = 10.97%
Formula
Percentage change = [(688 - 620) / 620] x 100
Subtract the new number by the original number
688 - 620 = 68
68 ÷ 620 = 0.10967741935483871
0.10967741935483871 x 100 = 10.97%