Percentages,  Discounts,  Commissions,
Interest,  Profit and Loss

The arithmetical principles learned in studying the topic of Percentages can be applied directly in solving problems in Discounts, Commissions, Interest, Profit and Loss.

Percentages Base (B) Rate percent (R) Percentage (P) Amount     or Difference (D) Commissions List price Rate Discount Net price	Interest Principal Rate Interest Amount	Discounts Cost or Selling price Rate of commission Commission Total cost     or Net proceeds Profit and Loss Cost Present gain or loss Gain or loss in money Selling price