-49.34% is the change from 981 to 497
Calculation steps:
[( 497 - 981 ) ÷ 981] x 100 = -49.34%
Formula
Percentage change = [(497 - 981) / 981] x 100
Subtract the new number by the original number
497 - 981 = -484
-484 ÷ 981 = -0.49337410805300713
-0.49337410805300713 x 100 = -49.34%