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I need a little extension to chrome or firefox ( You choose the best for the mission) is for a specific web
The mission is simple I want to calculate and fill as quickly as possible just one field with a formula inmediatly when the another element changes and invoque a "Click" event button , The formula is the following.
Field X = Price - (Price * percentage change) - Parameter_that_you_ask_before
Price and Percentage change are in the web so you have to get from there.
The operation should be checked each 0.01 -0.02 seconds and executed from the browser You should ask if the text change ( That I will to tell you which one ) and executed the little script. But this script should be executed just in where I'm participating. ( I thing that the most simple way is that before to enable the script you ask for the link and if the link is the same then executed the script, )
So exist 2 parameter that you should ask in the script: the link and the last parameter in the formula above.