To find a percentage of a number, multiply the number by the decimal version of the percent.
For 94.12%, the decimal form is 0.9412 (because 94.12% really means 94.12 out of 100).
So, to find 94.12% of 2125, multiply the decimal form by the number:
2125 × 0.9412 =2000.05, so 2000 people finished the race.