20.97% is the change from 620 to 750
Calculation steps:
[( 750 - 620 ) ÷ 620] x 100 = 20.97%
Formula
Percentage change = [(750 - 620) / 620] x 100
Subtract the new number by the original number
750 - 620 = 130
130 ÷ 620 = 0.20967741935483872
0.20967741935483872 x 100 = 20.97%