340.85% is the change from 71 to 313
Calculation steps:
[( 313 - 71 ) ÷ 71] x 100 = 340.85%
Formula
Percentage change = [(313 - 71) / 71] x 100
Subtract the new number by the original number
313 - 71 = 242
242 ÷ 71 = 3.408450704225352
3.408450704225352 x 100 = 340.85%