Translation from Spanish into English - 1800 characters with space

I am a professional translator and I will translate from Spanish into English for you.
The prices are as follows:
0 to 20 pages - 5$ per page (1800 characters with space)
20 - 50 pages and above - 4$ per page
Above 50 pages - 3$ per page
Prices for proofreading:
50% of the translation price