88.03% is the change from 351 to 660
Calculation steps:
[( 660 - 351 ) ÷ 351] x 100 = 88.03%
Formula
Percentage change = [(660 - 351) / 351] x 100
Subtract the new number by the original number
660 - 351 = 309
309 ÷ 351 = 0.8803418803418803
0.8803418803418803 x 100 = 88.03%