"0.06%" reads "0.06 of 1%." is that what you meant?
If so, then the equivalent decimal fraction would be 0.0006, and 0.0006(26500) would be 15.9.
If you meant "6% of 26500," that would be 1590.
Please note: We do not multiply 26500 by 0.06%. That percentage, 0.06%, must be converted into the equivalent decimal fraction before multiplication takes place.