-23.1% is the change from 355 to 273
Calculation steps:
[( 273 - 355 ) ÷ 355] x 100 = -23.1%
Formula
Percentage change = [(273 - 355) / 355] x 100
Subtract the new number by the original number
273 - 355 = -82
-82 ÷ 355 = -0.23098591549295774
-0.23098591549295774 x 100 = -23.1%