307.6% is the change from 171 to 697
Calculation steps:
[( 697 - 171 ) ÷ 171] x 100 = 307.6%
Formula
Percentage change = [(697 - 171) / 171] x 100
Subtract the new number by the original number
697 - 171 = 526
526 ÷ 171 = 3.0760233918128654
3.0760233918128654 x 100 = 307.6%