Percentage Discount given an Original Price of $580 and a Sale Price of $191.40

Discount Rate = 1 –  
Discount Rate = 1 – 0.33
Discount Rate = 0.67
0.67 Converted to a Percent: 0.67 = 67%
Percentage Discount given an Original Price of $580 and a Sale Price of $191.40 = 67%
Note: Reduction in Price = $580 – $191.40 = $388.60