-3.3% is the change from 273 to 264
Calculation steps:
[( 264 - 273 ) ÷ 273] x 100 = -3.3%
Formula
Percentage change = [(264 - 273) / 273] x 100
Subtract the new number by the original number
264 - 273 = -9
-9 ÷ 273 = -0.03296703296703297
-0.03296703296703297 x 100 = -3.3%