Two methods:
That's how I decrease 940 by 49 percent. This is me actually doing it:
"percent" means "out of 100", so 49% means 49/100, thus
49% of 940 is 49/100 x 940 = 4603/5
So decreasing 940 by 49% is 940 - 4603/5 = 4792/5 = 479.4
Alternatively:
decreasing by 49% is the same as working out 100% - 49% = 51%. so
51% of 940 is 51/100 x 940 = 4792/5 = 479.4
940 decreased by 30% = 70% [left] of 940 = 940*70/100 = 658
The percent of decrease is the amount it has decreased by. 49-28 is 21, so set up 21/49 to x/100. Cross multiply to get 2100 = 49x, then divide both sides by 49. From this you get about 42.857, so the percent of decrease is 42.857%.
45
-30.6122%
To find 65 percent of 940, you first convert 65 percent to a decimal by dividing it by 100, which gives you 0.65. Then, you multiply 0.65 by 940 to get the answer. Therefore, 65 percent of 940 is 611.
80% of 940 = 80% * 940 = 0.8 * 940 = 752
8% of 940= 8% * 940= 0.08 * 940= 75.2
1% of 940 = 1% * 940 = 0.01 * 940 = 9.4
25% of 940 = 235
35% = .35.35 * 940 = 329
940%
34/49 = 0.6939 = 69.39% (to 2 dp) So the percentage decrease is 100 - 69.39 = 30.61%