A company’s production data for three factories over two years is as…

A company’s production data for three factories over two years is as follows: Factory A produced 150 units in 2021 and 180 in 2022. Factory B produced 200 units in 2021 and 220 in 2022. Factory C produced 120 units in 2021 and 150 in 2022. What is the percentage increase in total production from 2021 to 2022?