How many percentage of precipitation falls back onto land?

3% of Earth's water is fresh and of this 3%, 69% is Ice.

Thus 97% of Earth's water is salty

and 2.07 of the fresh water is Ice.

Which means 99.07% of Earth's water is not liquid fresh water.

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• The percentage of fresh water volume to total water is 2.5 %.
• Of this total volume 70% is ice.
• Of this fresh water around 30% is underground water.
• Fresh water lakes and rivers contain around 0.3% of total fresh water.
• The total usable fresh water is less than 1% of all fresh water resources.

refer to link below