-15.59% is the change from 975 to 823
Calculation steps:
[( 823 - 975 ) ÷ 975] x 100 = -15.59%
Formula
Percentage change = [(823 - 975) / 975] x 100
Subtract the new number by the original number
823 - 975 = -152
-152 ÷ 975 = -0.1558974358974359
-0.1558974358974359 x 100 = -15.59%