100%
One hundred percent
One shot at a time-100%
Make a clean break -50%
One tenth-10%
Kill two birds with one stone -200%
Get twice the result with half the effort-200%
Get twice the result with half the effort-50%
Ten winds and five rains -50%
As sure as a gun -90%
99% to 1%
Perfect-100%
Half a catty -50%
Genius is 1% inspiration and 99% sweat.
There is still a 50% chance of success if you continue, and 100% failure if you don't do it.