-16.21% is the change from 975 to 817
Calculation steps:
[( 817 - 975 ) ÷ 975] x 100 = -16.21%
Formula
Percentage change = [(817 - 975) / 975] x 100
Subtract the new number by the original number
817 - 975 = -158
-158 ÷ 975 = -0.16205128205128205
-0.16205128205128205 x 100 = -16.21%