-91.09% is the change from 797 to 71
Calculation steps:
[( 71 - 797 ) ÷ 797] x 100 = -91.09%
Formula
Percentage change = [(71 - 797) / 797] x 100
Subtract the new number by the original number
71 - 797 = -726
-726 ÷ 797 = -0.9109159347553325
-0.9109159347553325 x 100 = -91.09%