-72.61% is the change from 449 to 123
Calculation steps:
[( 123 - 449 ) ÷ 449] x 100 = -72.61%
Formula
Percentage change = [(123 - 449) / 449] x 100
Subtract the new number by the original number
123 - 449 = -326
-326 ÷ 449 = -0.7260579064587973
-0.7260579064587973 x 100 = -72.61%