391.55% is the change from 71 to 349
Calculation steps:
[( 349 - 71 ) ÷ 71] x 100 = 391.55%
Formula
Percentage change = [(349 - 71) / 71] x 100
Subtract the new number by the original number
349 - 71 = 278
278 ÷ 71 = 3.915492957746479
3.915492957746479 x 100 = 391.55%