-16.62% is the change from 975 to 813
Calculation steps:
[( 813 - 975 ) ÷ 975] x 100 = -16.62%
Formula
Percentage change = [(813 - 975) / 975] x 100
Subtract the new number by the original number
813 - 975 = -162
-162 ÷ 975 = -0.16615384615384615
-0.16615384615384615 x 100 = -16.62%