70 = 40 + 30
30 is 75% of 40
So the increase is 75%
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75%
40% of 70= 40% * 70= 0.4 * 70= 28
(Amount of increase/Initial value) * 100 (40/30) * 100 = 133.33%
70 / 0.4 = 175 Therefore, 70 is 40 percent of 175.
The percent of increase is 40%