A garment factory originally cost 160 yuan to produce a set of garments. Due to the expansion of production scale, the cost of each set of garments is now 136 yuan. By what percentage is the cost of each suit reduced now?
一个服装厂原来生产一套服装的成本是160元，由于扩大生产规模，现在每套服装的成本是136元．现在每套衣服的成本比原来降低了百分之几？
<gadget id="calculator">160 - 136</gadget>
<output>24</output>

<gadget id="calculator">24 / 160</gadget>
<output>3/20 = around 0.15</output>

<result>3/20 = around 0.15</result>