291.55% is the change from 71 to 278
Calculation steps:
[( 278 - 71 ) ÷ 71] x 100 = 291.55%
Formula
Percentage change = [(278 - 71) / 71] x 100
Subtract the new number by the original number
278 - 71 = 207
207 ÷ 71 = 2.915492957746479
2.915492957746479 x 100 = 291.55%