Each content marketing project I take on is different, which is why I ask people to make contact to discuss their specific requirements.
To provide you with a general idea of costs it usually works out at £25 for 750 words or less, £35 for between 750 and 1000 words, £50 for between 1000 and 1500 words, and £75 for between 1500 and 2000 words.