-84.7% is the change from 477 to 73
Calculation steps:
[( 73 - 477 ) ÷ 477] x 100 = -84.7%
Formula
Percentage change = [(73 - 477) / 477] x 100
Subtract the new number by the original number
73 - 477 = -404
-404 ÷ 477 = -0.8469601677148847
-0.8469601677148847 x 100 = -84.7%