I visited your website and I am so glad that you have taken the initiative of teaching kids the value of money.
However, I find it so wrong that you should attach a monetary value to a household chore, I feel that creating such a model will only make the child selfish or opportunist.
I have never attached a monetary value or a reward for my children to do what needs to be done — neither have I insisted upon them achieving a certain target to get what they wished for.
These are children, not pets that need to be trained with a goody every time they perform a trick.
Children taught this way will grow up with a mindset where they will expect to be rewarded for everything they do for others and which will only result in a selfish society.
Sorry for being so critical, but this is what I felt.