-56.83% is the change from 973 to 420
Calculation steps:
[( 420 - 973 ) ÷ 973] x 100 = -56.83%
Formula
Percentage change = [(420 - 973) / 973] x 100
Subtract the new number by the original number
420 - 973 = -553
-553 ÷ 973 = -0.5683453237410072
-0.5683453237410072 x 100 = -56.83%