-20.31% is the change from 975 to 777
Calculation steps:
[( 777 - 975 ) ÷ 975] x 100 = -20.31%
Formula
Percentage change = [(777 - 975) / 975] x 100
Subtract the new number by the original number
777 - 975 = -198
-198 ÷ 975 = -0.20307692307692307
-0.20307692307692307 x 100 = -20.31%