Question

1)Show that applying a 20% increase volume by 20% decrease is the same as a 4% decrease overall.

2)Will the final amount to be the same or different if you apply the decrease first and then increase?

Answer 1

see below

Explanation:

(1+20%) * (1-20%) =1.2 *0.8 = 0.96

so it's the same as 1- 4% = 0.96

no