-8.06% is the change from 273 to 251
Calculation steps:
[( 251 - 273 ) ÷ 273] x 100 = -8.06%
Formula
Percentage change = [(251 - 273) / 273] x 100
Subtract the new number by the original number
251 - 273 = -22
-22 ÷ 273 = -0.08058608058608059
-0.08058608058608059 x 100 = -8.06%