Answer:
20%, 30%
Explanation:
A diamond ring that normally sells for $1275 is now being sold at $1020
The percent mark down of the diamond ring can be calculated as follows
= 1275-1020
= 255
= 255/1275 ×100
= 0.2 ×100
= 20%
A ruby ring that sells for $290 is now being sold at $203
= 290-203
= 87
= 87/290 ×100
= 0.3×100
= 30%
Hence the percent mark down for the diamond ring and ruby ring is 20% and 30% respectively