# Add Subtract Percentage Calculator

# Increment and Decrement Percentage Calculator

An online plus and minus percent calculator.

Percentage Increase Table (Start Value = 100, Percentage Increase from 1% to 100%) |
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100 Increase By 1% = 101.00 |

100 Increase By 2% = 102.00 |

100 Increase By 3% = 103.00 |

100 Increase By 4% = 104.00 |

100 Increase By 5% = 105.00 |

100 Increase By 6% = 106.00 |

100 Increase By 7% = 107.00 |

100 Increase By 8% = 108.00 |

100 Increase By 9% = 109.00 |

100 Increase By 10% = 110.00 |

100 Increase By 11% = 111.00 |

100 Increase By 12% = 112.00 |

100 Increase By 13% = 113.00 |

100 Increase By 14% = 114.00 |

100 Increase By 15% = 115.00 |

100 Increase By 16% = 116.00 |

100 Increase By 17% = 117.00 |

100 Increase By 18% = 118.00 |

100 Increase By 19% = 119.00 |

100 Increase By 20% = 120.00 |

100 Increase By 21% = 121.00 |

100 Increase By 22% = 122.00 |

100 Increase By 23% = 123.00 |

100 Increase By 24% = 124.00 |

100 Increase By 25% = 125.00 |

100 Increase By 26% = 126.00 |

100 Increase By 27% = 127.00 |

100 Increase By 28% = 128.00 |

100 Increase By 29% = 129.00 |

100 Increase By 30% = 130.00 |

100 Increase By 31% = 131.00 |

100 Increase By 32% = 132.00 |

100 Increase By 33% = 133.00 |

100 Increase By 34% = 134.00 |

100 Increase By 35% = 135.00 |

100 Increase By 36% = 136.00 |

100 Increase By 37% = 137.00 |

100 Increase By 38% = 138.00 |

100 Increase By 39% = 139.00 |

100 Increase By 40% = 140.00 |

100 Increase By 41% = 141.00 |

100 Increase By 42% = 142.00 |

100 Increase By 43% = 143.00 |

100 Increase By 44% = 144.00 |

100 Increase By 45% = 145.00 |

100 Increase By 46% = 146.00 |

100 Increase By 47% = 147.00 |

100 Increase By 48% = 148.00 |

100 Increase By 49% = 149.00 |

100 Increase By 50% = 150.00 |

100 Increase By 51% = 151.00 |

100 Increase By 52% = 152.00 |

100 Increase By 53% = 153.00 |

100 Increase By 54% = 154.00 |

100 Increase By 55% = 155.00 |

100 Increase By 56% = 156.00 |

100 Increase By 57% = 157.00 |

100 Increase By 58% = 158.00 |

100 Increase By 59% = 159.00 |

100 Increase By 60% = 160.00 |

100 Increase By 61% = 161.00 |

100 Increase By 62% = 162.00 |

100 Increase By 63% = 163.00 |

100 Increase By 64% = 164.00 |

100 Increase By 65% = 165.00 |

100 Increase By 66% = 166.00 |

100 Increase By 67% = 167.00 |

100 Increase By 68% = 168.00 |

100 Increase By 69% = 169.00 |

100 Increase By 70% = 170.00 |

100 Increase By 71% = 171.00 |

100 Increase By 72% = 172.00 |

100 Increase By 73% = 173.00 |

100 Increase By 74% = 174.00 |

100 Increase By 75% = 175.00 |

100 Increase By 76% = 176.00 |

100 Increase By 77% = 177.00 |

100 Increase By 78% = 178.00 |

100 Increase By 79% = 179.00 |

100 Increase By 80% = 180.00 |

100 Increase By 81% = 181.00 |

100 Increase By 82% = 182.00 |

100 Increase By 83% = 183.00 |

100 Increase By 84% = 184.00 |

100 Increase By 85% = 185.00 |

100 Increase By 86% = 186.00 |

100 Increase By 87% = 187.00 |

100 Increase By 88% = 188.00 |

100 Increase By 89% = 189.00 |

100 Increase By 90% = 190.00 |

100 Increase By 91% = 191.00 |

100 Increase By 92% = 192.00 |

100 Increase By 93% = 193.00 |

100 Increase By 94% = 194.00 |

100 Increase By 95% = 195.00 |

100 Increase By 96% = 196.00 |

100 Increase By 97% = 197.00 |

100 Increase By 98% = 198.00 |

100 Increase By 99% = 199.00 |

100 Increase By 100% = 200.00 |

## Percentage Increment Formula

= Start Value * (1 + % of Start Value)

If you need to increase a number by a certain percentage, you can use a simple formula that multiplies the number times the percent + 1.

## Percentage Decrement Formula

= Start Value * (1 - % of Start Value)

In the same way, If you need to decrease a number by a certain percentage, you can use a simple formula that multiplies the number times the percent - 1.

## How Percentage Increment/Decrement Works

Computes an add or subract of a specific percentage of the input number. It basically involves converting a percent into its decimal equivalent, and either decrementing or incrementing the decimal equivalent from and to 1, respectively.

**Example1:** 50 increased by 10% (0.1)

50 x (1 + 0.1) = 55

**Example2:** 50 decreased by 10% (0.1)

50 x (1 - 0.1) = 45