80.52% is the change from 349 to 630
Calculation steps:
[( 630 - 349 ) ÷ 349] x 100 = 80.52%
Formula
Percentage change = [(630 - 349) / 349] x 100
Subtract the new number by the original number
630 - 349 = 281
281 ÷ 349 = 0.8051575931232091
0.8051575931232091 x 100 = 80.52%