Question

A factory produced 150 tons of steel in one year. The next year, the output increased to 180 tons. What is the percentage increase in the output?

Answer 1

The amount of increase is (180 - 150) = 30 tons.

The increase as a part of the original amount is 30/150 = 0.2

To change a decimal into a percent,
move the decimal point 2 places that way ===> .

0.2 = 20%