You can just add it like regular ol' addition or change it to a decimal by moving the point 2 places to the left, add it, and change it back to a percent. Adding percents is like adding fractions having 100 as the denominator: 35 percent + 10 percent = 35/100 + 10/100 = 45/100 = 45 percent.
178% = 1.78
A ratio can have any denominator. In a percent the denominator is implicitly 100 and only the numerator is mentioned. So 35 percent is the same as the ratio 35/100 or the ratio 7/20.
15 percent of 178 is 26.7
299.04.....is 168 percent of 178
10 percent of 178 = 17.8
178 percent of 600 = 1068 178% of 600 = 178% * 600 = 178%/100% * 600 = 1.78 * 600 = 1068
1.78 as a percent = 178%1.78 * 100% = 178%
30 percent for Asia
178 = 17800%
50 percent is correct.
30% of 178= 30% * 178= 0.3 * 178= 53.4