IF statements

I posted this under another section but I think you could write an If function to do the same thing. I've been working on it and have progressed a little, but still cant hone it in.

Good morning,

I'm working on a safety database where I'm tracking work place injuries (see attachment). I'm taking the number of injuries that occur (in the injuries tab) and dividing by the number of employees (employees tab) to give me a percentage of employees injured for that specific area (percentage tab). What I'm looking for however, is a code that will automatically take those percentages and inputs the appropriate number on the first tab (risk assessment) according to the key listed at the bottom of the risk assessment tab. For example, if the ICU had 5% of its employees injured due to patient lifting on the percentage tab, I want the cell under patient lifting to automatically populate with a 2 in the risk assessment tab.

Hope that is as clear as mud.

As always, any help is greatly appreciated.