It will take __days__ days until the investment of __costs__ FP has been returned with a daily production of __fpproduction__ FP/day, __goodsproduction__ goods/day (equals __goodsproduction__ * __goodsvalue__ = __goodsproductionvalue__ FP/day) and __attackproduction__ % attack bonus (equals __attackproduction__ * __attackvalue__ = __attackproductionvalue__ FP/day)
