(SOLVED) Random loot table not returning items

So I made a mod where if you put in a material (leather, iron, diamonds, ect.) based off the material it will give you another item relating to that material (eg. iron = iron chestplate), but when I click the button, it removes the item, but it does not return anything. EDIT: I found that my code was the numbers were the issue, my code would look for, example: a 1, but the random number generator would give a number such as: 1.69382. so I used a round function on the variable and it worked!