-84.95% is the change from 485 to 73
Calculation steps:
[( 73 - 485 ) ÷ 485] x 100 = -84.95%
Formula
Percentage change = [(73 - 485) / 485] x 100
Subtract the new number by the original number
73 - 485 = -412
-412 ÷ 485 = -0.8494845360824742
-0.8494845360824742 x 100 = -84.95%