-50.26% is the change from 979 to 487
Calculation steps:
[( 487 - 979 ) ÷ 979] x 100 = -50.26%
Formula
Percentage change = [(487 - 979) / 979] x 100
Subtract the new number by the original number
487 - 979 = -492
-492 ÷ 979 = -0.5025536261491318
-0.5025536261491318 x 100 = -50.26%