During the "Spring Festival Transport" period, the fare of a long-distance bus from City A to City B will be raised from 75 yuan to 90 yuan. How much is the price increase?
"春运"期间，从甲城开往乙城的长途客运汽车票价从75元提高到90元，提价百分之多少？
<gadget id="calculator">90 - 75</gadget>
<output>15</output>

<gadget id="calculator">15 / 75</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>