98.18% is the change from 275 to 545
Calculation steps:
[( 545 - 275 ) ÷ 275] x 100 = 98.18%
Formula
Percentage change = [(545 - 275) / 275] x 100
Subtract the new number by the original number
545 - 275 = 270
270 ÷ 275 = 0.9818181818181818
0.9818181818181818 x 100 = 98.18%