Percentage Discount given an Original Price of $200 and a Sale Price of $140

Discount Rate = 1 –  
Discount Rate = 1 – 0.7
Discount Rate = 0.3
0.3 Converted to a Percent: 0.3 = 30%
Percentage Discount given an Original Price of $200 and a Sale Price of $140 = 30%
Note: Reduction in Price = $200 – $140 = $60