200 is 40% of 500.
500%
40%
500 x 40/100 =200 so 500-200= 300
500 x 0.4 = 200
250% of 200= 250% * 200= 2.5 * 200= 500
+150%
200
500-200=300
20% of 500 = 20% * 500 = 0.2 * 500 = 100
500 x .4 = 200
40 percent off 500 = 30040% off of 500= 40% discount applied to 500= 500 - (40% * 500)= 500 - (0.40 * 500)= 500 - 200= 300