What is the correct formula to determine the percentage of base saturation?

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Base saturation (%) = (Ca + Mg + Na) ÷ CEC × 100Base saturation (%) = CEC ÷ (Ca + Mg + Na) × 100Base saturation (%) = CEC ÷ (Ca + Mg) × 100None of these formulas are correctNot applicable

Explanation

The accurate formula for calculating base saturation percentage is (Ca + Mg + Na) divided by the cation exchange capacity (CEC), multiplied by 100. This represents the proportion of exchangeable bases relative to the total cation exchange capacity, expressed as a percentage.