-50.31% is the change from 976 to 485
Calculation steps:
[( 485 - 976 ) ÷ 976] x 100 = -50.31%
Formula
Percentage change = [(485 - 976) / 976] x 100
Subtract the new number by the original number
485 - 976 = -491
-491 ÷ 976 = -0.5030737704918032
-0.5030737704918032 x 100 = -50.31%