-80.5% is the change from 795 to 155
Calculation steps:
[( 155 - 795 ) ÷ 795] x 100 = -80.5%
Formula
Percentage change = [(155 - 795) / 795] x 100
Subtract the new number by the original number
155 - 795 = -640
-640 ÷ 795 = -0.8050314465408805
-0.8050314465408805 x 100 = -80.5%