Wix site with built in "calculator"

I want html or other code that can be embedded into wix.com web page that will have prepopulated data of 24 variables, 1 "other" variable that is unlabeled or labeled "catch all" and a separate total of all those variables(Bayseian formula?) The web site visitor can after the site loads overwrite their own user provided two digit values and a grand total of all the 24 will be totaled live. The variable amounts can be changed at anytime and the total will automatically update on the wix page.