88.32% is the change from 351 to 661
Calculation steps:
[( 661 - 351 ) ÷ 351] x 100 = 88.32%
Formula
Percentage change = [(661 - 351) / 351] x 100
Subtract the new number by the original number
661 - 351 = 310
310 ÷ 351 = 0.8831908831908832
0.8831908831908832 x 100 = 88.32%