61.13% is the change from 391 to 630
Calculation steps:
[( 630 - 391 ) ÷ 391] x 100 = 61.13%
Formula
Percentage change = [(630 - 391) / 391] x 100
Subtract the new number by the original number
630 - 391 = 239
239 ÷ 391 = 0.6112531969309463
0.6112531969309463 x 100 = 61.13%