21.48% is the change from 512 to 622
Calculation steps:
[( 622 - 512 ) ÷ 512] x 100 = 21.48%
Formula
Percentage change = [(622 - 512) / 512] x 100
Subtract the new number by the original number
622 - 512 = 110
110 ÷ 512 = 0.21484375
0.21484375 x 100 = 21.48%