Scent is a manufacturer of scented candles. To produce a scented candle, it costs $0.50 for the wax, $0.25 for the wick, and $1.25 for the jar with lid. They then sell to a wholesaler for $5. The wholesaler sells the product to a retailer for $6.50. The retailer then sells the final product to the customer for $10.00.

If the retailers cost changed to $8.00, and all else stayed the same, what would the wholesalers margin?

a) 23.1%

b) 18.8%

c) 60%

d) 37.5%