-81.81% is the change from 797 to 145
Calculation steps:
[( 145 - 797 ) ÷ 797] x 100 = -81.81%
Formula
Percentage change = [(145 - 797) / 797] x 100
Subtract the new number by the original number
145 - 797 = -652
-652 ÷ 797 = -0.8180677540777918
-0.8180677540777918 x 100 = -81.81%