-50.62% is the change from 972 to 480
Calculation steps:
[( 480 - 972 ) ÷ 972] x 100 = -50.62%
Formula
Percentage change = [(480 - 972) / 972] x 100
Subtract the new number by the original number
480 - 972 = -492
-492 ÷ 972 = -0.5061728395061729
-0.5061728395061729 x 100 = -50.62%