78.8% is the change from 349 to 624
Calculation steps:
[( 624 - 349 ) ÷ 349] x 100 = 78.8%
Formula
Percentage change = [(624 - 349) / 349] x 100
Subtract the new number by the original number
624 - 349 = 275
275 ÷ 349 = 0.7879656160458453
0.7879656160458453 x 100 = 78.8%