Last time i bought some item boxes, when you make a quick calculation: 3% for legendary=3 in every 100 items, so 1 per 33,3 items. I had 12 item boxes, 12* 3 = 36 and for legendary items! 4/36*100=11,1111%. 1/33,3= 3%. So i had a really lucky day. However 2 of them were the same drone and the other two were both a torso.

I believe people misunderstand percentages in games, especially in drop rates. They do not compound in most cases. Meaning every time an item drops (or in this case a box is opened) it generates a 3% chance that a legendary item will come from it.

I do understand the system with the chance rating, but I just tought I was very lucky to get so many legendary items from that low amount of item boxes.

Right but you said 3 in a 100 items, two parts of that are wrong. Presumably it would be 3 items in 100 item boxes if that were correct. Secondly which I was clearing up is the % does not compound per box opened. I'd rather be very specific than possibly confuse players.