-16.89% is the change from 971 to 807
Calculation steps:
[( 807 - 971 ) ÷ 971] x 100 = -16.89%
Formula
Percentage change = [(807 - 971) / 971] x 100
Subtract the new number by the original number
807 - 971 = -164
-164 ÷ 971 = -0.16889804325437693
-0.16889804325437693 x 100 = -16.89%