Multiple IF OR functions (Nested)

Hi All,

In the attached file i am trying to convert USD to different currencies based on Pricing Category. For Example, if the pricing Category is Parts i want to convert to GBP. to do this i need to multiple USD*.524*1.28. If the pricing category is System, i want to convert to GBP and need to multiply USD*.694*1.85. I would assume i need an IF OR function, however, my experience with functions is somewhat limited. I had started the formula using =IF(OR(C2="PARTS",C2="PART KITS"),I2*0.524*1.28),IF(OR(C2="SYSTEMS",C2="SYSTEM KIT"),I2*0.694*1.85)

Any help is appeciated!