90.26% is the change from 349 to 664
Calculation steps:
[( 664 - 349 ) ÷ 349] x 100 = 90.26%
Formula
Percentage change = [(664 - 349) / 349] x 100
Subtract the new number by the original number
664 - 349 = 315
315 ÷ 349 = 0.9025787965616046
0.9025787965616046 x 100 = 90.26%