-80.38% is the change from 790 to 155
Calculation steps:
[( 155 - 790 ) ÷ 790] x 100 = -80.38%
Formula
Percentage change = [(155 - 790) / 790] x 100
Subtract the new number by the original number
155 - 790 = -635
-635 ÷ 790 = -0.8037974683544303
-0.8037974683544303 x 100 = -80.38%