For much of the 20th century, the common belief was that Columbus first landed on San Salvador Island (not to be confused with San Salvador, the capital of El Salvador). But in 1986, National Geographic researcher Joseph Judge, after new evidence and calculations, declared that Guanahani was actually what is now called Samana Cay, about 65 miles southeast of San Salvador Island. His declaration was controversial, and the debate about where Columbus first set foot in the Americas still continues.
Explanation: A quick way to think of this is moving the decimal in 9.4 to the right by two decimal places (since there are two zeroes in 100) Hope this helps! :)