-39.64% is the change from 449 to 271
Calculation steps:
[( 271 - 449 ) ÷ 449] x 100 = -39.64%
Formula
Percentage change = [(271 - 449) / 449] x 100
Subtract the new number by the original number
271 - 449 = -178
-178 ÷ 449 = -0.39643652561247217
-0.39643652561247217 x 100 = -39.64%