84.25% is the change from 273 to 503
Calculation steps:
[( 503 - 273 ) ÷ 273] x 100 = 84.25%
Formula
Percentage change = [(503 - 273) / 273] x 100
Subtract the new number by the original number
503 - 273 = 230
230 ÷ 273 = 0.8424908424908425
0.8424908424908425 x 100 = 84.25%