100% is the change from 273 to 546
Calculation steps:
[( 546 - 273 ) ÷ 273] x 100 = 100%
Formula
Percentage change = [(546 - 273) / 273] x 100
Subtract the new number by the original number
546 - 273 = 273
273 ÷ 273 = 1
1 x 100 = 100%
Example