How much over the speed limit is driving at 80 in a 60 zone?

[StJameson]

The formula for calculating the percentage of speeding is: [(Actual speed - Speed limit) / Speed limit] X% = Percentage of speeding. Driving at 80 in a 60 zone and being caught by mobile speed detection constitutes a 40% speeding violation, which results in a fine of 200 yuan and 3 demerit points. On roads other than highways, the levels of speeding and corresponding fines are as follows: 1. Speeding up to 50% over the limit: 3 demerit points and a 200 yuan fine. 2. Speeding between 50% and 80% over the limit: 6 demerit points and a 200 yuan fine. 3. Speeding between 80% and 100% over the limit: 12 demerit points and a 500 yuan fine. 4. Speeding over 100% of the limit: A 1000 yuan fine and possible license revocation.