80/20 Rule in


Good result is 80% of perfection, great result is 90%, and the 100% perfection is ideal result. 80% is enough in most situations, and it’s considered good quality.

To achieve the 80% of result it can take only 20% of effort, when planning in advance and working smart. But to achieve the additional 20% (the ideal result), it takes 80% of additional effort.