Answer:
1.8%
Step-by-step explanation:
Multiplying the current population (P) by 1.018 means that we're keeping the current amount of people (Because it is 1.018) and adding 0.018 * P people. We need to convert the decimal to percent to get the percentage the populations increases by. To convert from decimal to percent, just multiply the decimal value by 100. In this example we have: 0.018 × 100 = 1.8%.