-20.92% is the change from 975 to 771
Calculation steps:
[( 771 - 975 ) ÷ 975] x 100 = -20.92%
Formula
Percentage change = [(771 - 975) / 975] x 100
Subtract the new number by the original number
771 - 975 = -204
-204 ÷ 975 = -0.20923076923076922
-0.20923076923076922 x 100 = -20.92%