Answer :
Find 5%, 6%, and 4% of 0.5.
5% of 0.5 = 0.05 * 0.5 = 0.025 of nitrogen
6% of 0.5 = 0.06 * 0.5 = 0.03 of phosphorus
4% of 0.5 = 0.04 * 0.5 = 0.02 of potassium
5% of 0.5 = 0.05 * 0.5 = 0.025 of nitrogen
6% of 0.5 = 0.06 * 0.5 = 0.03 of phosphorus
4% of 0.5 = 0.04 * 0.5 = 0.02 of potassium