284.51% is the change from 71 to 273
Calculation steps:
[( 273 - 71 ) ÷ 71] x 100 = 284.51%
Formula
Percentage change = [(273 - 71) / 71] x 100
Subtract the new number by the original number
273 - 71 = 202
202 ÷ 71 = 2.8450704225352115
2.8450704225352115 x 100 = 284.51%