How do I determine the contribution margin ratio when I do not have the sales price per unit?

Contribution Margin Concepts The follcn.'ing informztTan is taken from the 2017 records of Hendrixs Guitsr Center Supple Utiliti Required 220 ,cco s coo u, cco 12,000 12,cco Variable Total slE30,cco E7s,cco 10,000 20,000 SSOOCCO Determine the ennuel breakeven dollar sales volume Contributin mersin rstio: Annual Oresk-even dollsr sees volumes: Determine the current mergin of sefety in dollsrs_ (c.) Prepre cost-volume-profitgrzph for the guitar shop. Label both axes in dollars wfth maximum values of SI Draw s vertical line on the for the sales level, end total vsriile costs, tots' ned costs, tots I profits S7S,OOO sees. Whet is the annual break-eten dollsr ssles volume if menegement mikes decision incresses fixed costs Oy