What's the penalty exp on past lives while leveling a different life?

In Fantasy Life your job is referred to as your Life. You can swap between them at will by visiting the guild master and asking to change but he mentions that your skills from past lives will not level as fast as they would if they were your current life. How much slower is what I am wondering as there are some jobs I would like to have access to the skills but may not really need to level them up at a faster rate.

So after some more experimenting I am pretty confident that experience overall is 50% (towards your character level) and Skill Experience is 75-80% for Lives that do not naturally have the Skill you are using. Interestingly enough crafting experience is not affected by the quality of the item you create. A Superior item nets you the same experience and skill experience as a normal one. EDIT: Combat skills below.

I will post the numbers I have later.

As a Blacksmith:
* "Good" Gold Pickaxe - 115 exp - 215 Smithing Exp
* "Good" Iron Sword - 25 exp - 71 Smithing Exp
* "Great" Iron Sword - 25 Exp - 71 Smithing Exp

As a Carpenter:
* Normal Gold Pickaxe - 57 Exp (50%) - 170 Smithing Exp (80%)
* "Great" Iron Sword - 12 Exp (50%) - 55 Smithing Exp (76%)

Combat Basic data. 33% Experience gain for a skill not naturally used by that Life.

As a Paladin:
* 3 hit combo on Pterodactyl - 15 Longsword Exp
* 2 Hits (one each on the sheep things in East Grassy Plains) - 6 exp

As a Mercenary:
* 3 Hit combo on Pterodactyl - 6 Longsword Exp (33%)
* 2 Hits (one each on the sheep things) - 2 exp (33%)

As a Blacksmith:
* 3 Hit combo on Angry Cactus - 6 Longsword Exp (33%)

Not sure how much more in depth I want to go. But I was very surprised how low the combat exp was for the wrong Life. And it looks like being a crafting job does not change the ratio.