With repair lvl 1, you repair up to 60% of your item. 60% of 4 = 2,4 but the game doesn't work with decimals so, it's just 2/4
With lvl 2, you can repair up to 70%. 70% of 4 = 2,8 so it is still just 2/4
With lvl 3, you can repair up to 80%. 80% of 4 = 3,2 so it will become 3/4
With lvl 4, you can repair up to 90%. 90% of 4 = 3,6 so it is still 3/4
With lvl 5, you repair full 100%, so it becomes 4/4
Does that make sense?
