254.55% is the change from 77 to 273
Calculation steps:
[( 273 - 77 ) ÷ 77] x 100 = 254.55%
Formula
Percentage change = [(273 - 77) / 77] x 100
Subtract the new number by the original number
273 - 77 = 196
196 ÷ 77 = 2.5454545454545454
2.5454545454545454 x 100 = 254.55%