Dropdown based on one table passing to other fields using ajax laravel

I'm having problem with regards to selected dropdown passing fields value to other input.

Basically I have one table (plans) which have id, plan_name, price. So i want to pass price to the other input.

So I expect the output that if I selected one of the choices the price will be on the price input.

<div class="control-group">
                <label class="control-label">Plan</label>
                    <div class="controls">
                      <select name="plan_id" id="plan_id" class="plan" style="width:220px">
                          <option value="0">Select</option>
                          @foreach($plans as $plan)
                      <option value="" ></option>
                          @endforeach
                      </select>
                </div>
              </div>
              <div class="control-group">
                  <label class="control-label">Price</label>
                  <div class="controls">
                    <input class="plan_price" type="number" name="price" id="price">
                  </div>
               </div>

via Chebli Mohamed