10 percent of 640 is 64.
800 - (20%) = 640
640
99.99 minus 10 percent of 99.99 is 89.991
I presume the question is "what is 10 percent of minus 100"10% x -100 = -10
10% minus 32 is -31.9
There are two potential answers to that. 20 minus the value 10% is 19.90. 20 minus 10 percent of 20 is 18.
10% - 1% = 9%
8.8
2000 minus 640 is 1360, and 1360 is 68% of 2000
1540 minus 10% of it gives 1386.
23 percent of 640 is 147.2