my @points = ([10,12,'HP'],[10,17,'Mana'],[10,7,'Spells']);
my @need = (40, 40, 40);

##</code><code>##

You have 30 and need 120
You need 90 more, and you gain them at 36 per hour
That should take 90/36 hour(s).
New value for HP: 10
New value for Mana: -2        <-----------
New value for Spells: 22