Omni Calculator - Helping you make rational decisions, one calculation at a time.
Cent - A network for Universal Creative Income.
Numbr - An elegant calculator for the web
Percentages - Easy to use percentage calculator
Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
PercentageTools.com - Percentage calculator, online calculates percentage in many situations, simply enter the numbers and get the result and the formula of calculation.