1 00:00:00,580 --> 00:00:06,610 Let's see if we can write 1.501 as a percentage. 2 00:00:06,610 --> 00:00:09,030 Now we really just want to write this quantity 3 00:00:09,030 --> 00:00:11,050 as something over 100. 4 00:00:11,050 --> 00:00:12,880 So what we can do is we can say that this 5 00:00:12,880 --> 00:00:16,480 is the same thing as 1.501 over 1. 6 00:00:16,480 --> 00:00:17,940 We haven't changed its value. 7 00:00:17,940 --> 00:00:22,504 And let's multiply it times 100/100. 8 00:00:22,504 --> 00:00:24,920 When we do this product-- and I haven't changed the value. 9 00:00:24,920 --> 00:00:26,770 This is just multiplying something times 1. 10 00:00:26,770 --> 00:00:28,770 But when we do it, we're going to change the way 11 00:00:28,770 --> 00:00:29,895 that we're representing it. 12 00:00:29,895 --> 00:00:33,570 The denominator now is going to be 1 times 100. 13 00:00:33,570 --> 00:00:35,000 So that's pretty straightforward. 14 00:00:35,000 --> 00:00:36,980 That's just going to be 100. 15 00:00:36,980 --> 00:00:38,740 And then the numerator, we're going 16 00:00:38,740 --> 00:00:42,730 to want to multiply 1.501 times 100. 17 00:00:42,730 --> 00:00:45,460 And so if we multiply this times 10, 18 00:00:45,460 --> 00:00:47,250 we would move the decimal one over. 19 00:00:47,250 --> 00:00:48,750 We want to multiply it by 100, so we 20 00:00:48,750 --> 00:00:50,600 want to multiply by 10 again. 21 00:00:50,600 --> 00:00:52,970 So we're going to move the decimal over to the right 22 00:00:52,970 --> 00:00:53,470 twice. 23 00:00:53,470 --> 00:00:56,000 We're multiplying it by 10 twice, 24 00:00:56,000 --> 00:00:57,907 or you're multiplying it by 100. 25 00:00:57,907 --> 00:00:58,990 This is multiplying by 10. 26 00:00:58,990 --> 00:01:00,310 This is multiplying by 100. 27 00:01:00,310 --> 00:01:02,310 So this is where the decimal's going to sit now. 28 00:01:02,310 --> 00:01:07,060 So we're going to get 150.1. 29 00:01:07,060 --> 00:01:12,340 And so we've rewritten the 1.501 as 150.1 over 100, 30 00:01:12,340 --> 00:01:14,731 or 150.1 per 100. 31 00:01:14,731 --> 00:01:15,480 Let me write that. 32 00:01:15,480 --> 00:01:22,530 150.1 per 100, which is the same thing 33 00:01:22,530 --> 00:01:32,980 as 150.1 per cent, which is the same thing as 150.1%. 34 00:01:32,980 --> 00:01:33,687 And we're done. 35 00:01:33,687 --> 00:01:35,770 And, essentially, all you're doing-- if you really 36 00:01:35,770 --> 00:01:38,740 want to simplify the process-- we're multiplying this 37 00:01:38,740 --> 00:01:41,380 by 100 to get 150.1. 38 00:01:41,380 --> 00:01:43,575 And then we're saying, that is the percentage. 39 00:01:43,575 --> 00:01:45,950 So you want to make sure that you write the percent there 40 00:01:45,950 --> 00:01:48,150 or the percent symbol.