QUESTION 4 Ms Springbok runs a small tuckshop from her house. She sells sweets, chips, cans of cooldrink and vetkoek. Once a week she buys 6 cases of cooldrink for R137,50 each. A case of cooldrink consist of 4 six-packs. Each can contains 330 ml of cooldrink . At the end of the week all her cooldrinks are sold out. 4.1 if she sells the cooldrink in her tuckshop for R8,00 a can, what percentage does she add to the cost price per can to determine her selling price? of th​