Given: Selling Price (SP) = Rs. 198 Profit percent (P%) = 10% Profit percent (P%) = 25% Concept: Basics of profit and loss and the relationship between marked price and cost price Formula Used:SP=CP×100100±LP​​Calculation:SP=CP×100100+10​ ⇒ CP = 180 Now, if shopkeeper wants profit of 25% then, selling price must be ⇒ SP=180×100100+25​ ⇒ S.P = Rs. 225 ∴ The selling price of the cake is Rs. 225.