Changes

First, it can be a number or percentage which sets an upper limit;

First, it can be a number or percentage which sets an upper limit;

     For example, "Certain goods can be imported only in a limited amount as established by the quota."

     For example, "Certain goods can be imported only in a

    limited amount as established by the quota."

Second, it can be a number or percentage which sets a minimum.

Second, it can be a number or percentage which sets a minimum.

     For example, "At least 25% of raw materials must be recycled."

     For example, "At least 25% of raw materials must be recycled."

(Paraphrased from American Heritage Dictionary)

(Paraphrased from American Heritage Dictionary)