-82.85% is the change from 449 to 77
Calculation steps:
[( 77 - 449 ) ÷ 449] x 100 = -82.85%
Formula
Percentage change = [(77 - 449) / 449] x 100
Subtract the new number by the original number
77 - 449 = -372
-372 ÷ 449 = -0.8285077951002228
-0.8285077951002228 x 100 = -82.85%