-83.07% is the change from 449 to 76
Calculation steps:
[( 76 - 449 ) ÷ 449] x 100 = -83.07%
Formula
Percentage change = [(76 - 449) / 449] x 100
Subtract the new number by the original number
76 - 449 = -373
-373 ÷ 449 = -0.8307349665924276
-0.8307349665924276 x 100 = -83.07%