90.88% is the change from 351 to 670
Calculation steps:
[( 670 - 351 ) ÷ 351] x 100 = 90.88%
Formula
Percentage change = [(670 - 351) / 351] x 100
Subtract the new number by the original number
670 - 351 = 319
319 ÷ 351 = 0.9088319088319088
0.9088319088319088 x 100 = 90.88%