How to write the percent of a number by using a proportion, 7% of 35

The video tutorial explains how to calculate 7% of a number using cross product and scientific notation. It begins with setting up the problem, then demonstrates the calculation process, including converting percentages to decimals and solving for X. The tutorial also covers the elimination of percentage units and the use of scientific notation for division, concluding with practical applications of the concepts.

What new insight or understanding did you gain from this video?