-82.63% is the change from 449 to 78
Calculation steps:
[( 78 - 449 ) ÷ 449] x 100 = -82.63%
Formula
Percentage change = [(78 - 449) / 449] x 100
Subtract the new number by the original number
78 - 449 = -371
-371 ÷ 449 = -0.8262806236080178
-0.8262806236080178 x 100 = -82.63%