-49.64% is the change from 979 to 493
Calculation steps:
[( 493 - 979 ) ÷ 979] x 100 = -49.64%
Formula
Percentage change = [(493 - 979) / 979] x 100
Subtract the new number by the original number
493 - 979 = -486
-486 ÷ 979 = -0.4964249233912155
-0.4964249233912155 x 100 = -49.64%