Question Before Checking Out This Plugin

I think this plugin may work for a goal I am attempting to accomplish with my website. Can this plugin create custom fields where values will fluctuate? For instance, I want to create a custom field for each user that stores the value of the sales they make on the website. The default value of the custom field would be 0.00 using the currency data type. Would this plugin work for this purpose?

http://wordpress.org/plugins/wck-custom-fields-and-custom-post-types-creator/