In the manufacture of a machine, each machine used to use 1.6 tons of steel, but now each machine saves 0.2 tons of steel compared to the original one. How much is the savings?
制造一种机器，原来每台用钢材1.6吨，现在每台比原来节省钢材0.2吨，节省了百分之几？
<gadget id="calculator">0.2 / 1.6</gadget>
<output>0.125</output>

<result>0.125</result>