-68.72% is the change from 975 to 305
Calculation steps:
[( 305 - 975 ) ÷ 975] x 100 = -68.72%
Formula
Percentage change = [(305 - 975) / 975] x 100
Subtract the new number by the original number
305 - 975 = -670
-670 ÷ 975 = -0.6871794871794872
-0.6871794871794872 x 100 = -68.72%