-12.22% is the change from 311 to 273
Calculation steps:
[( 273 - 311 ) ÷ 311] x 100 = -12.22%
Formula
Percentage change = [(273 - 311) / 311] x 100
Subtract the new number by the original number
273 - 311 = -38
-38 ÷ 311 = -0.12218649517684887
-0.12218649517684887 x 100 = -12.22%