-44.4% is the change from 491 to 273
Calculation steps:
[( 273 - 491 ) ÷ 491] x 100 = -44.4%
Formula
Percentage change = [(273 - 491) / 491] x 100
Subtract the new number by the original number
273 - 491 = -218
-218 ÷ 491 = -0.4439918533604888
-0.4439918533604888 x 100 = -44.4%