Excel formula to Zoho formula

Excel formula to Zoho formula

Hmmf - just finished writing this - tried to add a Google doc and it crashed the page and now I'm having to start again.

Anyway, I'm new to Zoho, and I'm trying to use Zoho to create an HTML or iframe version of an excel spreadsheet I've made which I then plan to paste in a Wiki page in Moodle. It's so my students can add their own grades to their own grade sheet - and automatically get the correct overall grade shown. Once up and running I'd like students to be able to add predicted grades and also for the overall grades to then be converted to UCAS points so they can get a good feel for their targets needed to get on to whatever Uni course they've applied to (if they have).

Here's my spreadsheet - https://spreadsheets.google.com/spreadsheet/ccc?key=0AmzBeQsgRhz0dGRFdzhTTzFDVTBrQ2FoNlBKdEQ0Y0E&hl=en_US#gid=0

I don't know how to use the excel formula in Zoho - I've had a look at a few help pages and I'm none the wiser. Does Zoho use a similar language to excel? It's bringing up loads of 'Encountered....' messages for the formula.

Any help would be greatly appreciated.

Tom