Cent - A network for Universal Creative Income.
Numi App - Numi is a beautiful text calculator for Mac.
Percentages - Easy to use percentage calculator
SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
PercentageTools.com - Percentage calculator, online calculates percentage in many situations, simply enter the numbers and get the result and the formula of calculation.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.