-49.64% is the change from 973 to 490
Calculation steps:
[( 490 - 973 ) ÷ 973] x 100 = -49.64%
Formula
Percentage change = [(490 - 973) / 973] x 100
Subtract the new number by the original number
490 - 973 = -483
-483 ÷ 973 = -0.49640287769784175
-0.49640287769784175 x 100 = -49.64%