-17.03% is the change from 975 to 809
Calculation steps:
[( 809 - 975 ) ÷ 975] x 100 = -17.03%
Formula
Percentage change = [(809 - 975) / 975] x 100
Subtract the new number by the original number
809 - 975 = -166
-166 ÷ 975 = -0.17025641025641025
-0.17025641025641025 x 100 = -17.03%