88.86% is the change from 350 to 661
Calculation steps:
[( 661 - 350 ) ÷ 350] x 100 = 88.86%
Formula
Percentage change = [(661 - 350) / 350] x 100
Subtract the new number by the original number
661 - 350 = 311
311 ÷ 350 = 0.8885714285714286
0.8885714285714286 x 100 = 88.86%