I need help with my coding homework. I cannot figure out this exercise. You are to assume any import statements, classes, and methods needed are already implemented. I just need the body of the code. Can you please help and explain?

Given an array of double values that contains the prices of merchandise, return the range of the prices (the difference between the largest price and the smallest). You may assume that all values in the array are positive and that the highest price does not exceed 1000.00. You may also assume there is at least one value in the array.

Examples:

priceRange({66.66, 44.44, 22.22, 99.99, 55.55}) -> 77.77 priceRange({100.00, 250.00, 300.00, 470.00}) -> 370.00 priceRange({14.95, 3.25, 6.02, 45.20, 8.63, 19.45, 37.11}) -> 41.95