-48.31% is the change from 975 to 504
Calculation steps:
[( 504 - 975 ) ÷ 975] x 100 = -48.31%
Formula
Percentage change = [(504 - 975) / 975] x 100
Subtract the new number by the original number
504 - 975 = -471
-471 ÷ 975 = -0.48307692307692307
-0.48307692307692307 x 100 = -48.31%