-49.74% is the change from 979 to 492
Calculation steps:
[( 492 - 979 ) ÷ 979] x 100 = -49.74%
Formula
Percentage change = [(492 - 979) / 979] x 100
Subtract the new number by the original number
492 - 979 = -487
-487 ÷ 979 = -0.4974463738508682
-0.4974463738508682 x 100 = -49.74%