[ZeonOne]

Your energy
refreshes at a rate depending on your donation status.

If you have not donated, your energy refreshes at a rate of exactly 8% of your maximum energy, rounded.

If you have donated, and selected a donator pack with your credits, your energy refreshes at 15.4%, rounded.

What do we mean by rounded? Standard mathematical rounding rounds down if the decimal is less than .5, and rounds up if it is not. So if you use a calculator and determine 15.4% of your 14 energy is 2.156, then you will gain energy at a rate of 2 per refresh period. If you have an 18 energy max, 15.4% of this is 2.78, which will be converted to 3.