-82.21% is the change from 961 to 171
Calculation steps:
[( 171 - 961 ) ÷ 961] x 100 = -82.21%
Formula
Percentage change = [(171 - 961) / 961] x 100
Subtract the new number by the original number
171 - 961 = -790
-790 ÷ 961 = -0.8220603537981269
-0.8220603537981269 x 100 = -82.21%