-44.69% is the change from 490 to 271
Calculation steps:
[( 271 - 490 ) ÷ 490] x 100 = -44.69%
Formula
Percentage change = [(271 - 490) / 490] x 100
Subtract the new number by the original number
271 - 490 = -219
-219 ÷ 490 = -0.44693877551020406
-0.44693877551020406 x 100 = -44.69%