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As it appears, the expressions is equivalent to 800x.
440 + 440 + 440 + 440 + 440 + 440 = 2,640
5x-5x = 0
100% of 440= 100% * 440= 1 * 440= 440
10
0
Multiply 440 x .07 and then add the product to 440: (440 x .07) + 440 = 30.80 + 440 = 470.80
30% of 440= 30% * 440= 0.3 * 440= 132
16% of 440= 16% * 440= 0.16 * 440= 70.4
75% of 440= 75% * 440= 0.75 * 440= 330
92% of 440= 92% * 440= 0.92 * 440= 404.8
55% of 440= 55% * 440= 0.55 * 440= 242
11% of 440= 11% * 440= 0.11 * 440= 48.4