7.8% is the change from 577 to 622
Calculation steps:
[( 622 - 577 ) ÷ 577] x 100 = 7.8%
Formula
Percentage change = [(622 - 577) / 577] x 100
Subtract the new number by the original number
622 - 577 = 45
45 ÷ 577 = 0.0779896013864818
0.0779896013864818 x 100 = 7.8%