so can i clarify here, (yes im still getting to grips with this) if i activate my minimum donation on both Btc and Nmc of 1.50% then activate my perk for Easy Mode at 0.50% each which = 4% in total, my income will raise?
For prepay of both BTC and NMC plus the easy mode perk you need 2% BTC and 2% NMC donation - much cheaper than 4% of your total income, as the NMC is only a small part of it. Also, at that point you are at 2% donation so you could activate all perks through the "pro minter" perk.
Easy mode doesn't raise your income. It allows you to set a higher submits-per-minute setting for your workers, which will reduce your daily variance a bit. Read this where I explained how it works:
https://bitcointalk.org/index.php?topic=27062.msg3142713#msg3142713Especially interesting is Organofcorti's analysis on how high/low difficulty mining affects your variance.