Less gold from farm, no one has stolen it!

[R28799735]

I have planted a L2 gold seed it should give me at least 4500 gold (got farm lvl 3 so it should be more), but i got 3870 and I look in my log and no one has stolen from me in 2 hours, while my farm has been done a few minutes ago...
What is going on?!

[Whispir]

If no one exterminates/weeds it before it finishes growing, it gives less.

[Arlad]

1 bug/weed when it's finally bloomed = -10% gain(same as 1 steal). Got both of them? do the math.