Cаse 2: Suppоse Sаmsung prices the Gаlaxy S24Max smartphоne at $1230. The per unit margin/markup is $580. Alsо suppose that Samsung has discovered that of the consumers that consider but do not purchase the Galaxy S24Max, 30% are likely to purchase the cheaper Galaxy S24 (with a per-unit margin of $300). Samsung is considering a 5% price increase for the Galaxy S24Max . Q: What is the true stay even quantity change (in %) for a 5% increase in price for the S24Max?