-47.9% is the change from 975 to 508
Calculation steps:
[( 508 - 975 ) ÷ 975] x 100 = -47.9%
Formula
Percentage change = [(508 - 975) / 975] x 100
Subtract the new number by the original number
508 - 975 = -467
-467 ÷ 975 = -0.47897435897435897
-0.47897435897435897 x 100 = -47.9%