A publishing company plans to replace its four proofreaders who look for errors in manuscripts with a new scanning machine and one proofreader in case the machine breaks down. Currently the proofreaders check 15 manuscripts every week between them. Each is paid €80,000 per year.

Hiring the new scanning machine will cost €5,000 each calendar month, but it could check 50 manuscripts per week. How will this new system affect the proofreading department’s productivity?