// Function to calculate discount based on the number of items
function calculateDiscount(numItems) {
let discountRate = 0;
if (numItems > 10 && numItems <= 20) {
discountRate = 0.05; // 5% discount for 11-20 items
} else if (numItems > 20 && numItems <= 30) {
discountRate = 0.1; // 10% discount for 21-30 items
} else if (numItems > 30) {
discountRate = 0.15; // 15% discount for 31 or more items
}
return discountRate;
}
