-50.72% is the change from 972 to 479
Calculation steps:
[( 479 - 972 ) ÷ 972] x 100 = -50.72%
Formula
Percentage change = [(479 - 972) / 972] x 100
Subtract the new number by the original number
479 - 972 = -493
-493 ÷ 972 = -0.507201646090535
-0.507201646090535 x 100 = -50.72%