base - percentage = y = 150 0.5 Therefore, Gemma's weekly allowance is P150. C Finding the Rate A truit vendor sells 20 kg of fruits daily. Three hours after opening her stall, she already sod 12 kg of us what percent of the fruits were already sold? Again, lets us find the rate, base and percentage. Here, the rate is unknown so let us represent with R. The base is 20 kg and the percentage is 12 kg. To solve for the rate, we divided the percentage by the base. We change decimal to percent Rate 12 rentage 20 base = 0.60 = 60% Exercises:​