-78.29% is the change from 797 to 173
Calculation steps:
[( 173 - 797 ) ÷ 797] x 100 = -78.29%
Formula
Percentage change = [(173 - 797) / 797] x 100
Subtract the new number by the original number
173 - 797 = -624
-624 ÷ 797 = -0.7829360100376411
-0.7829360100376411 x 100 = -78.29%