257.14% is the change from 273 to 975
Calculation steps:
[( 975 - 273 ) ÷ 273] x 100 = 257.14%
Formula
Percentage change = [(975 - 273) / 273] x 100
Subtract the new number by the original number
975 - 273 = 702
702 ÷ 273 = 2.5714285714285716
2.5714285714285716 x 100 = 257.14%