Multiple IF Statements with < and > functions for range of values

Hi There,

I have a sheet used to calculate USC levies in Ireland for payroll purposes. I am tryng to use one formula to calcalate amount due. At present i have it set up manually. If there was an IF statement i could use to make thngs easier i would appreciate your help. I have attached sample sheet to help understand what im looking for.

Basically in short i would like column k "Total Due" to include IF statement for 3 conditions rather than columns E-J in blue.
If gross wage <€193 then calculate at a rate of 2%
If >€193.01 but <€308 calculate first €193 at 2% remainder at 4%
If >308.01 calculate first €193 at 2%, between €308-€193.01 at 4% and remainder >€308.01 at 7%. This is on cummulative basis and for week1 so

Week2 will be as follows
If gross wage <€193*2 then calculate at a rate of 2%
If >€193.01*2 but <€308*2 calculate first €193*2 at 2% remainder at 4%
If >308.01*2 calculate first €193*2 at 2%, between (€308*2)-(€193.01*2) at 4% and remainder >€308.01*2 at 7% as so on *3, *4, *5..........*52 weeks