309.36% is the change from 171 to 700
Calculation steps:
[( 700 - 171 ) ÷ 171] x 100 = 309.36%
Formula
Percentage change = [(700 - 171) / 171] x 100
Subtract the new number by the original number
700 - 171 = 529
529 ÷ 171 = 3.0935672514619883
3.0935672514619883 x 100 = 309.36%