91.17% is the change from 351 to 671
Calculation steps:
[( 671 - 351 ) ÷ 351] x 100 = 91.17%
Formula
Percentage change = [(671 - 351) / 351] x 100
Subtract the new number by the original number
671 - 351 = 320
320 ÷ 351 = 0.9116809116809117
0.9116809116809117 x 100 = 91.17%