Alison Parker sells homemade knit scarves for $20 each at local craft shows. Her contribution margin tato is 62.5%. Currently, the craft show entrance fees cost Alison $500 per year. The crat shows are raising their entrance fees by 25% next year. How mary extra scarvos will Allson have to sel noxt year just fo pay for riaing entranco feo costs? Begin by identifying the general formula to compute the breakeven sales in units