280 lbs
For a 280 pound pet:
.2 mg/kg X 127 kg = 25.4 mg of ivermectin = 22%
.4 mg/kg X 127 kg = 50.8 mg of ivermectin = 45%
.6 mg/kg X 127 kg = 76.2 mg of ivermectin = 67%
You get the percentage from the old formula “% x Whole = Part” To get the %, you figure part/whole.