-48.51% is the change from 975 to 502
Calculation steps:
[( 502 - 975 ) ÷ 975] x 100 = -48.51%
Formula
Percentage change = [(502 - 975) / 975] x 100
Subtract the new number by the original number
502 - 975 = -473
-473 ÷ 975 = -0.48512820512820515
-0.48512820512820515 x 100 = -48.51%