-48.11% is the change from 981 to 509
Calculation steps:
[( 509 - 981 ) ÷ 981] x 100 = -48.11%
Formula
Percentage change = [(509 - 981) / 981] x 100
Subtract the new number by the original number
509 - 981 = -472
-472 ÷ 981 = -0.48114169215086644
-0.48114169215086644 x 100 = -48.11%