Complex sentence: The success rate for two-point conversions is less than 40 percent in the NFL and college, making the two-point conversion attempt a risky tactic; thus it is usually attempted only when two points will help the team but one point will not.
Split into simpler sentences: The success rate for two-point conversions is less than 40 per cent in the NFL and college, making the two-point conversion attempt a risky tactic. It is usually attempted only when two points will help the team but one point will not.