Vodafone Idea’s stock suffered a significant decline on Friday, falling over 14% after foreign brokerage Goldman Sachs issued a ‘sell’ recommendation with a target price 83% lower than its Thursday closing price. Goldman Sachs reiterated its ‘Sell’ rating on the stock, raising the target price marginally to Rs 2.5 per share from Rs 2.2, which led to a 14.44% drop in the company’s share price on the BSE, reaching as low as Rs 12.91. At 12:20 pm, the share price was still trading more than 10% in the red. The new target price represents an 83% decrease from Thursday’s closing price. Goldman Sach…