With Celsius stock falling drastically in recent months, is now a good time to invest in the business?Shares of Celsius Holdings (CELH 2.18%) have been in a free fall of late. The energy drink company's growth rate has been slowing and with the stock trading at a high premium, it has had some difficulty attracting and retaining growth investors. A year ago, the business was growing at a rate of 112%. Now, it has slowed to just 23%. Ultimately, choosing to buy the stock or not could come down to whether you ...