There are 143 staff members in a certain organization after streamlining the organization, which is 57 fewer than the original staff. How much is the reduction?
某机关精减机构后有工作人员143人，比原有工作人员减少了57人，减少了多少
<gadget id="calculator">143 + 57</gadget>
<output>200</output>

<gadget id="calculator">57 / 200</gadget>
<output>57/200 = around 0.285</output>

<result>57/200 = around 0.285</result>