A success rate gives you a number that informs your performance analysis. You will shortly be able to see if you’ve improved or not.

Calculate your ‘success rate’ to measure your progress over time. The formula is: Success Rate = (Completed Amount / Target Amount) * 100%. 

The cost or payoff is not always clear.

For example, people feel more pain from the loss of a dollar than pleasure from a dollar gained. It is called loss aversion. 

The prospect theory combines the ideas of loss aversion and over- and under-weighing the...

The fear of abandonment, rejection, loss of connectedness, unwanted, disrespected or devalued. 

The "silent treatment," when imposed by a group, can have a devastating effect on its target.