Difference between an ordinary & special resolution (NSW)

Hi,

I’ve recently received a request via our Strata Manager for an EGM. There are 3 items to be voted on. There is no mention whether the items are an ordinary or special resolution. 

Questions:

1) How to I find out whether the items are ordinary or special resolutions? (there is no reference on the information received).

2) How do the resolutions get categorised (what’s the criteria for special vs ordinary)?

If someone could clarify the items below it would be really appreciated too…

In relation to ordinary resolutions:

I’m of the understanding that you need 50% +1 (over half the votes) to effect the change????

In relation to special resolutions:

I’m of the understanding that you need 75% of the votes to effect the change???

Thanks in advance,

Sasha1