Amazon Sales Analysis

I took a look at the sales of The Pink Herring through Amazon today. Nearly half the sales are in the eBook format and I expect that percentage to rise as time goes on.
The price differential between the eBook and the paperback is £8 although there is little difference in royalty due to the print costs. 16% of the sales have been through the KindleUnlimited platform and it's surprising that's it's so low. 



However, the second set of slides show the split between countries and no surprises that the vast majority of sales come from the UK and Ireland (90%) with only 6% from the USA. KU membership is much more common in the states and may account for why the sales through KU are low.
I have found it very difficult to break into the US market since I only have 2 reviews there as opposed to the 13 reviews I have in the UK. I may indulge in some mainstream marketing once the The Nor'easter is released since the series will hopefully be established by then...
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