Comparing the overall donations to salaries, I get the following:
2009 – 111.74% (Church run school being funded, school is shut down)
2010 – 52.81%
2011 – 50.71%
2012 – 41.06%
The slowly declining ratio is NOT due to them being more conservative, but rather that the members are giving more tithing over time.
In 2011, there were 104,115 members, which means that donations were roughly only $303.70 per member per year. That’s not exactly 10%… or they don’t make much money in New Zealand.
But let’s go based on wards to calculate active members. 207 wards x 150 individuals per ward would mean the average donation is $1,018.32 per member–meaning that they are either poor as dirt, or very few people are paying tithing.
Anyway, the actual tax reports are linked above. Have fun with some of your own calculations.