-63.7% is the change from 449 to 163
Calculation steps:
[( 163 - 449 ) ÷ 449] x 100 = -63.7%
Formula
Percentage change = [(163 - 449) / 449] x 100
Subtract the new number by the original number
163 - 449 = -286
-286 ÷ 449 = -0.6369710467706013
-0.6369710467706013 x 100 = -63.7%