 <translate> If the initial price was $600, after negotiating the price, Karsyn paid 20 / 100 * $600 = $120 less. The price at which she bought the phone is $600 - $120 = $480. The final answer: 480. <yor> Bí iye tí wọ́n kọ́kọ́ san bá jẹ́ $600, lẹ́yìn tí wọ́n ti fèrò wérò lórí iye tí wọ́n máa san, Karsyn máa san 20 / 100 * $600 = $120 dín kù. Owó tó fi ra fóònù náà jẹ́ $600 - $120 = $480. Ìdáhùn tí wọ́n fún wa níkẹyìn ni pé: 480. 