70.57% is the change from 350 to 597
Calculation steps:
[( 597 - 350 ) ÷ 350] x 100 = 70.57%
Formula
Percentage change = [(597 - 350) / 350] x 100
Subtract the new number by the original number
597 - 350 = 247
247 ÷ 350 = 0.7057142857142857
0.7057142857142857 x 100 = 70.57%