Could you convert the application fees into Ghana Cedis?

Hi, following documents are required:

Original invitation letter from company or travel bureau in China.

Flight and hotel itinerary

Proof of economic guarantee (such as personal bank account statement or pay slips from employer current for at least four months) both original and photocopy.

Photocopy and original passport valid for more than six (6) months and must have at least two (2) pages for visa purposes.

Introductory letter from employer.

Completed visa application form with one white background passport size picture.

Fee is USD 50. I tried a currency converter and it tells, but not found the answer.