Thanks, Joblo, but my goal wasn't to setup my rig to auto-switch algo's, rather to know which was more profitable for reference.
most profitable algo is individual for every miner,
you have password options to adjust profitability estimates.
and this has nothing to do with btc or ltc since those being mined with asics
Thanks, Unklo. I understand profitability varies drastically based on mining hardware, and upon settings.
Comparing the efficiency between ASIC's and GPU is not the purpose.
The relative profitability percentage uses BTC only as a common payment medium, and LTC as a base with which to index altcoin algo's on a GPU vs mining LTC on the same given GPU. Each altcoin algo's running profitability can be indexed for relative profitability by pairing the coin vs LTC on a common exchange site (Cryptsy, etc), deducting assumed fees and exchange losses, and sorting the resulting BTC payout yields. One practical purpose might be to decide what algo to base new or re-purposed rigs upon.