-61.92% is the change from 449 to 171
Calculation steps:
[( 171 - 449 ) ÷ 449] x 100 = -61.92%
Formula
Percentage change = [(171 - 449) / 449] x 100
Subtract the new number by the original number
171 - 449 = -278
-278 ÷ 449 = -0.6191536748329621
-0.6191536748329621 x 100 = -61.92%