Answer:
26%
Step-by-step explanation:
Original price of the emerald ring
= $3000
Price after the sale
= $2220
Decrease in amount
= $(3000 - 2220)
= $780
Percentage decrease
[tex] \\ = (\: \frac{decrease \: in \: amount}{original \: amount} \times 100)\%[/tex]
[tex] \\ = ( \frac{780}{3000} \times 100)\%[/tex]
[tex] \\ = (26)\%[/tex]
[tex] \\ = 26\%[/tex]
Hence, by 26% has the price of the ring gone down.
