The Quarterback Rating is a measure of the performance of passers, primarily quarterbacks, in American football and Canadian football. Quarterback rating in the NFL is on a scale from 0 to 158.3. The following formula is used: `QR=(((COMP)/("ATT")-0.3)*5+((YDS)/("ATT")-3)*0.25+(TD)/("ATT")*20+2.375-(INT)/("ATT")*25)/6*100`, where