certain farm harvested 3,500 tons of wheat last year, and this year's output is 15% higher than last year. How many tons of wheat will you harvest this year?
某农场去年收小麦3500吨，今年比去年增产一成五．今年收小麦多少吨？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">3_500 * (23/20)</gadget>
<output>4_025</output>

<result>4_025</result>