What is 100 million of 2 billion?

To find what percentage 100 million is of 2 billion, you can use the formula: (part/whole) × 100. Here, 100 million is the part and 2 billion (which is 2,000 million) is the whole. Thus, (100 million / 2,000 million) × 100 equals 5%. Therefore, 100 million is 5% of 2 billion.