To solve this, you have to start with the whole of 80, and then take away 95% of 80, or (.95 x 80).
80 - (.95) x 80 = 4
Alternatively, you could do a bit of quick mental algebra to speed it up:
80 - (.95)(80)
= 1 x 80 - .95 x 80
= 80(1 - .95)
= 80(.05) = 4
Since you take away 95%, you're left with 5%.
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80 decreased by 100 percent = zero
80% = 0.80.8 x 95 = 76
118.75 is the percent increase from 80 to 95.
The answer is 24.
76/0.8 = 95Therefore, 76 is 80 percent of 95.