-78.54% is the change from 797 to 171
Calculation steps:
[( 171 - 797 ) ÷ 797] x 100 = -78.54%
Formula
Percentage change = [(171 - 797) / 797] x 100
Subtract the new number by the original number
171 - 797 = -626
-626 ÷ 797 = -0.7854454203262233
-0.7854454203262233 x 100 = -78.54%