This is an enhanced version of an informative script Turkdigo
posted on the MTurkGrind forum. I offered to post it on GF and make some improvements, and he gave the go-ahead. This resulting script now has been tested in both Firefox and Chrome-based browsers, appears to be fully compatible with the many other scripts I use, displays data on both search results pages and individual HIT pages in an improved position, and more-clearly labels the data; and users can click on the current target wage and wait time (your expected reload delay between HITs) settings to easily change them. The default settings are $7.25/hr and 2sec wait, and it will reset to those if you enter invalid input in the settings prompts. If you want the calculations without considering load times, you can enter 0 for the wait setting. Output is rounded to the nearest second per HIT and tenth of a HIT. If a HIT can take 10min or more at your target wage rate, 'HITs/min' will display '--' since 0.1 HITs/min is the lowest it will go.
See also: my MTG thread post
; Dynamo fair payment guidelines
; ZSMTurker's HIT Wage Quick Reference images
For many more MTurk-related userscripts, see the Turking Scripts set