We already have our first value **100** and the second value **125**. Let's assume the unknown value is **Y** which answer we will find out.

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 1 Y = 100125

By multiplying both numerator and denominator by 100 we will get:

STEP 2 Y = 100125 × 100100 = 80100

STEP 3 Y = 80

Finally, we have found the value of Y which is 80 and that is our answer.

If you want to use a calculator to find **100 is what percent of 125**, simply enter **100 ÷ 125 × 100** and you will get your answer which is **80**

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Here is a calculator to solve percentage calculations such as 100 is what percent of 125. You can solve this type of calculation with your values by entering them into the calculator's fields, and click *'Calculate'* to get the result and explanation.

**Question:** Your Uncle, who loves to collect antique coins, collected 100 coins from his list of 125 coins. What percent of coins has he collected?

**Answer:** He collected 80 percent of the coins from his list.

**Question:** Your aunt has baked 125 cookies, and she gave you 100 to take home with you. What percent of the cookies did she give you?

**Answer:** 80 percent of the cookies.

Let's solve the equation for Y by first rewriting it as: **100% / 125 = Y% / 100**

Drop the percentage marks to simplify your calculations: **100 / 125 = Y / 100**

Multiply both sides by 100 to isolate Y on the right side of the equation: **100 ( 100 / 125 ) = Y**

Computing the left side, we get: **80 = Y**

This leaves us with our final answer: **100 is 80 percent of 125**

100 is 80 percent of 125 |

100.01 is 80.008 percent of 125 |

100.02 is 80.016 percent of 125 |

100.03 is 80.024 percent of 125 |

100.04 is 80.032 percent of 125 |

100.05 is 80.04 percent of 125 |

100.06 is 80.048 percent of 125 |

100.07 is 80.056 percent of 125 |

100.08 is 80.064 percent of 125 |

100.09 is 80.072 percent of 125 |

100.1 is 80.08 percent of 125 |

100.11 is 80.088 percent of 125 |

100.12 is 80.096 percent of 125 |

100.13 is 80.104 percent of 125 |

100.14 is 80.112 percent of 125 |

100.15 is 80.12 percent of 125 |

100.16 is 80.128 percent of 125 |

100.17 is 80.136 percent of 125 |

100.18 is 80.144 percent of 125 |

100.19 is 80.152 percent of 125 |

100.2 is 80.16 percent of 125 |

100.21 is 80.168 percent of 125 |

100.22 is 80.176 percent of 125 |

100.23 is 80.184 percent of 125 |

100.24 is 80.192 percent of 125 |

100.25 is 80.2 percent of 125 |

100.26 is 80.208 percent of 125 |

100.27 is 80.216 percent of 125 |

100.28 is 80.224 percent of 125 |

100.29 is 80.232 percent of 125 |

100.3 is 80.24 percent of 125 |

100.31 is 80.248 percent of 125 |

100.32 is 80.256 percent of 125 |

100.33 is 80.264 percent of 125 |

100.34 is 80.272 percent of 125 |

100.35 is 80.28 percent of 125 |

100.36 is 80.288 percent of 125 |

100.37 is 80.296 percent of 125 |

100.38 is 80.304 percent of 125 |

100.39 is 80.312 percent of 125 |

100.4 is 80.32 percent of 125 |

100.41 is 80.328 percent of 125 |

100.42 is 80.336 percent of 125 |

100.43 is 80.344 percent of 125 |

100.44 is 80.352 percent of 125 |

100.45 is 80.36 percent of 125 |

100.46 is 80.368 percent of 125 |

100.47 is 80.376 percent of 125 |

100.48 is 80.384 percent of 125 |

100.49 is 80.392 percent of 125 |

100.5 is 80.4 percent of 125 |

100.51 is 80.408 percent of 125 |

100.52 is 80.416 percent of 125 |

100.53 is 80.424 percent of 125 |

100.54 is 80.432 percent of 125 |

100.55 is 80.44 percent of 125 |

100.56 is 80.448 percent of 125 |

100.57 is 80.456 percent of 125 |

100.58 is 80.464 percent of 125 |

100.59 is 80.472 percent of 125 |

100.6 is 80.48 percent of 125 |

100.61 is 80.488 percent of 125 |

100.62 is 80.496 percent of 125 |

100.63 is 80.504 percent of 125 |

100.64 is 80.512 percent of 125 |

100.65 is 80.52 percent of 125 |

100.66 is 80.528 percent of 125 |

100.67 is 80.536 percent of 125 |

100.68 is 80.544 percent of 125 |

100.69 is 80.552 percent of 125 |

100.7 is 80.56 percent of 125 |

100.71 is 80.568 percent of 125 |

100.72 is 80.576 percent of 125 |

100.73 is 80.584 percent of 125 |

100.74 is 80.592 percent of 125 |

100.75 is 80.6 percent of 125 |

100.76 is 80.608 percent of 125 |

100.77 is 80.616 percent of 125 |

100.78 is 80.624 percent of 125 |

100.79 is 80.632 percent of 125 |

100.8 is 80.64 percent of 125 |

100.81 is 80.648 percent of 125 |

100.82 is 80.656 percent of 125 |

100.83 is 80.664 percent of 125 |

100.84 is 80.672 percent of 125 |

100.85 is 80.68 percent of 125 |

100.86 is 80.688 percent of 125 |

100.87 is 80.696 percent of 125 |

100.88 is 80.704 percent of 125 |

100.89 is 80.712 percent of 125 |

100.9 is 80.72 percent of 125 |

100.91 is 80.728 percent of 125 |

100.92 is 80.736 percent of 125 |

100.93 is 80.744 percent of 125 |

100.94 is 80.752 percent of 125 |

100.95 is 80.76 percent of 125 |

100.96 is 80.768 percent of 125 |

100.97 is 80.776 percent of 125 |

100.98 is 80.784 percent of 125 |

100.99 is 80.792 percent of 125 |