The number [ 0.0015 ] is fifteen ten-thousandths.
Most people would say "fifteen thousandths". It would not be wrong to say "Point (or decimal) zero one five".
As a decimal, 75 thousandths is .075
Three and ten thousandths would be 3.01 as a decimal.
0.416 would be416 thousandths in decimal form
The percentage would be "fourteen point six six seven percent" as percentages would not normally express the decimal values as thousandths of a percent.
Assuming you mean five and three thousandths, the decimal would be 5.003. If you mean, fifty-three thousandths, the decimal would be .053.