21.62% is the change from 518 to 630
Calculation steps:
[( 630 - 518 ) ÷ 518] x 100 = 21.62%
Formula
Percentage change = [(630 - 518) / 518] x 100
Subtract the new number by the original number
630 - 518 = 112
112 ÷ 518 = 0.21621621621621623
0.21621621621621623 x 100 = 21.62%