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by
A number is increased by 20% and then decreased by 20% the final value of the number
- Does not change
- Decreases by 2%
- Increases by 4%
- Decreases by 4%
lets suppose number is 100:
100+ (20%) =120
120 -(20%) =96
4% of 100 is 4 so 100-4=96 . It means it decreases 4%