A county originally planned to plant 528 hectares of trees in a few days, but the actual number of hectares per day was 50% more than the original plan, and the task was completed 8 days earlier than the original plan. How many hectares of forest were originally planned to be afforested per day?
某县原计划若干天植树造林528公顷，实际每天造林的公顷数比原计划每天多50%，结果比原计划提前8天完成任务．原计划每天造林多少公顷？
<gadget id="calculator">528 - 528</gadget>
<output>0</output>

<gadget id="calculator">0 + 12</gadget>
<output>12</output>

<gadget id="calculator">264 / 12</gadget>
<output>22</output>

<result>22</result>