I do this by counting plate numbers. There is often a way to work out what it is in load but it doesn't matter so long as you progress.Leg day
5 minute exercise bike ride
Leg extensions
Setting 9 reps 13 12 10 10
Walking lunges 30kg sets 13 10 9 9
Leg press 160kg sets 14 13 13 10
Seated hamstring curls setting 11
Reps 11 11 9 5
Standing calf machine setting 7
Reps 16 13 13 10 7