First find how many tablespoons of water are left after the evaporation: 16 tbs - 4 tbs = <<16-4=12>>12 tbs
Then multiply this number by 4 to find how much water is in the jug after Janice refills it: 12 tbs * 4 = <<12*4=48>>48 tbs
Now add the 2 tablespoons of koolaid powder to find the total volume of the liquid in the jug: 48 tbs + 2 tbs = <<48+2=50>>50 tbs
Now divide the volume of the koolaid powder by the total volume and multiply by 100% to find the percentage of the liquid that's koolaid: 2 tbs / 50 tbs * 100% = 4%
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