Clean Up Sales Spreadsheet

I have a Google Sheet that tracks our sales figures, and it’s become cluttered with data entry mistakes: duplicate rows, missing fields, and a few numbers that were typed into the wrong columns. I need the file taken back to a reliable, analysis-ready state... (Budget: $30 - $250 USD, Jobs: Copy Editing, Copywriting, Data Analysis, Data Management, Data Visualization, Editing, Google Sheets, Microsoft, Word)