-67.71% is the change from 449 to 145
Calculation steps:
[( 145 - 449 ) ÷ 449] x 100 = -67.71%
Formula
Percentage change = [(145 - 449) / 449] x 100
Subtract the new number by the original number
145 - 449 = -304
-304 ÷ 449 = -0.6770601336302895
-0.6770601336302895 x 100 = -67.71%