When using treats as Rewards, be sure to use a treat that matches the level of difficulty for the task. For low level difficulty, use low value treats. For high level difficulty, use your highest valued treats! See the following examples:

A.) Low value treat. (Dry kibble, hard treats)
When/where? Working indoors on Place/stay with your dog (little to no distractions).
They have a +90% proficiency.

B.) Medium value treat. (Soft, smelly treats)
When/Where? Working outdoors on Heel & Look with a dog that gets somewhat distracted by skateboards (medium level distractions).
They have a +70% proficiency.

C.) High value treat. (Bacon, cheddar cheese, boiled chicken)
When/Where? Working outdoors on Look with a leash reactive dog that gets very distracted by other dogs on leash (high level of distractions).
They have a -70% proficiency.