6.94% is the change from 620 to 663
Calculation steps:
[( 663 - 620 ) ÷ 620] x 100 = 6.94%
Formula
Percentage change = [(663 - 620) / 620] x 100
Subtract the new number by the original number
663 - 620 = 43
43 ÷ 620 = 0.06935483870967742
0.06935483870967742 x 100 = 6.94%