A pottery workshop records an average of 72 finished bowls per worker per shift. In a later shift, the average is 81 bowls per worker. Calculate the percentage increase in labour productivity.
121 exam-style questions on OCR GCSE Economics 3.7 Supply side policies, covering 3.7.1 What are supply side policies and 3.7.2 Costs and benefits of supply side policies. Each one has a worked solution and a mark scheme showing where the marks go.