800
700
7.21 = 721/100
721
700
DCCXXI This is because D is 500, C is 100, X is 10 and I is 1. 500 + 100 + 100 + 10 + 10 + 1 = 721
720
100-300 USD
100-400 or so
122 to the nearest 100 is 100
103 to the nearest hundreds is 100
100-300 USD
To convert any decimal to percent, simply multiply the decimal by 100. So, 7.21 × 100 = 721%