Savings per breakdown:
85% of the amount of breakdowns times the cost per breakdown per vehicle.
Tire Cost Savings:
10% of the cost of a new tire times the cost of amount of tires per vehicle due to proper inflation. Times average lifetime of tire.
Fuel Savings:
25% of total fuel consumption (mileage x MPG) based on tires rolling resistance. 10% of fuel consumption based on rolling resistance times the average price of gallon due to proper inflation.