*
* <b>array</b> The array or range of data with numeric values that defines relative standing.<br>
* <b>X</b> The value for which you want to know the rank.<br>
- * <b>significance</b> TOptional. A value that identifies the number of significant digits for the returned percentage value.
+ * <b>significance</b> Optional. A value that identifies the number of significant digits for the returned percentage value.
* If omitted, PERCENTRANK uses three digits (0.xxx).<br>
* <br>
* Returns a number between 0 and 1 representing a percentage.