-48.63% is the change from 985 to 506
Calculation steps:
[( 506 - 985 ) ÷ 985] x 100 = -48.63%
Formula
Percentage change = [(506 - 985) / 985] x 100
Subtract the new number by the original number
506 - 985 = -479
-479 ÷ 985 = -0.4862944162436548
-0.4862944162436548 x 100 = -48.63%