63.32% is the change from 349 to 570
Calculation steps:
[( 570 - 349 ) ÷ 349] x 100 = 63.32%
Formula
Percentage change = [(570 - 349) / 349] x 100
Subtract the new number by the original number
570 - 349 = 221
221 ÷ 349 = 0.6332378223495702
0.6332378223495702 x 100 = 63.32%