Kobayashi's rice harvest last year was 1500kg, and this year it is expected to increase by -10% compared to last year. How many kilograms is the total rice output expected to be this year?
小林家去年种植水稻收成为1500kg，今年预计比去年增产-10%．今年水稻总产量预计是多少千克？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1_500 * (9/10)</gadget>
<output>1_350</output>

<result>1_350</result>