5 of what percent is 3.5

100%/x%=3.5/5 (100/x) * x = (3.5/5) * x - we multiply both sides of the equation by x 100=0.7*x - we divide both sides of the equation by (0.7) to get x 100/0.7=x 142.85714285714=x x=142.85714285714 now we have: 5 is 142.85714285714% of 3.5

If you take 3.5 and divide it by 0.05, or times 20, that would make it 70.