Round ( number ; -2 )
Truncate() is another function, that may be used:
This function doesn’t evaluate digits beyond the specified precision. Use the Round function to round up or down to the required precision.
If you round a negative number of decimal places, all digits to the right of the decimal point are dropped, and the number is rounded to the nearest tens, hundreds, and so on. The Round function always rounds up at 0.5.