Performance ratios such as Sell Through Rate, RPI and earnings per download can provide valuable insights into what is happening with your portfolio. One of the new functions enabled by LookStat’s upgraded stats service is the ability to compare trends over different time periods.
To illustrate this, we looked at Summer 2009 vs. Summer 2008 for the portfolio below. In this case, we used June 1 – Sep 30 as the definition of ‘Summer’.
The best way to currently compare time periods is to log in to your LookStat account, open it in 2 tabs and then use the date control in the header bar to enter the date range you’re focused on.
Summer 2008

The above is a screenshot of a daily plot of sales at iStock from June 1 – September 30, 2008. You can see the slow uploading of images (28 at the start of the period to 88 at the end of summer) and you can also see the summary metrics for the time period in question. The other thing you can see is the three best-performing images over that time period.
Summer 2009

The above screenshot is the same period as the prior chart in 2009. You can see that no images have been uploaded to the account for a year. 2 of the top 3 images are the same. The second one, the pumpkin shot, didn’t start selling until the Fall of 2008 and so didn’t break the top 3 in 2008. (As an aside, sales for the pumpkin shot actually climbed over time.)
Performance Metrics
The summary bar below the chart contains core metrics and ratios that give you a snapshot view of overall performance during the period in question. I compared the metrics for Summer 2008 & Summer 2009 in excel and you can see them side by side below.

In this case, increased pricing ($/DL) and slightly improved sell-through rate couldn’t compensate for a 40% drop in RPI. The biggest factor behind the declining performance of this portfolio is lack of uploading. No new images were added over the course of the year.
Analyzing your Own Stats
The example above is for a small, inactive portfolio and doesn’t reflect the market as a whole. I was actually surprised that even with no activity for a year, sales declined by less than 30%. I expect that most of you seeing success with microstock will find that all your key metrics are green.
Ideally, you should be increasing the overall performance ratios of your images. So, for example, if you are adding images but seeing a decline in sell-through-rate, it could mean that you are not shooting enough saleable images, or you are uploading too many similars together. Analyzing your key metrics over time can help you identify opportunities to increase earnings.
The ultimate goal is to combine shooting what you love, with shooting what makes you the most money. We want to make it easy for you to do that.