The following graph represents the installed capacity for cement production…

The following graph represents the installed capacity for cement production (in tonnes) and the

actual production (in tonnes) of nine cement plants of a cement company. Capacity utilization of a

plant is defined as ratio of actual production of cement to installed capacity. A plant with installed

capacity of at least 200 tonnes is called a large plant and a plant with lesser capacity is called a

small plant. The difference between total production of large plants and small plants, in tonnes is

____.