318.31% is the change from 71 to 297
Calculation steps:
[( 297 - 71 ) ÷ 71] x 100 = 318.31%
Formula
Percentage change = [(297 - 71) / 71] x 100
Subtract the new number by the original number
297 - 71 = 226
226 ÷ 71 = 3.183098591549296
3.183098591549296 x 100 = 318.31%