A local bakery produces 600 loaves of bread each day in three 10-hour shifts. Due to an increase in demand, they decide to operate in four 8-hour shifts instead. They are now able to produce 800 loaves of bread each day. What has happened to labor productivity?
O It has decreased by 20%
O It has increased by 20%
O It has increased by 25%
O It has increased by 33%
O Productivity has not changed
