68.86% is the change from 350 to 591
Calculation steps:
[( 591 - 350 ) ÷ 350] x 100 = 68.86%
Formula
Percentage change = [(591 - 350) / 350] x 100
Subtract the new number by the original number
591 - 350 = 241
241 ÷ 350 = 0.6885714285714286
0.6885714285714286 x 100 = 68.86%