# progressive IF range2

#### BrutalLogiC

##### Active Member
I'm trying to write a formula which returns a percentage value based on the IF statements below... it's the 'progressive' increase I can't master

A1 is a number I manually enter. It will only be a whole number!
1. if A1 under 1 = 0%
2. if A1 over 200 = 10%
but then...
if A1 is:
1. between 1 to 5 = then the result should be a progressive range 1% to 3%.... so...
1. if A1 was 1 then the result would be exactly 1.00%
2. if A1 was 3 (i.e. in the middle of 1 to 5) then the percentage would be in the middle of 1% and 3% i.e. exactly 2.00%
3. if A1 was 5 then it would be 3.00%
4. if A1 was 2 or 4 then it would be a fraction percentage either 1.5% or 2.5%
2. between 6 to 50 = progressive range 4% to 6%
1. if A1 was 6 then result if 4.00%
2. if A1 was 11 then the result would be around 4.25% (i think.. working that out in my head)
3. between 51 to 200 = progressive range 7% to 9%
1. if A1 was 200 then 9.00%
2. if A1 was 201 then 10.00%
3. if A1 was 199 then ever so slightly less than 9%
4. if A1 was right in the middle of 51 and 200 then it would be 8%
it is a bit weird that in no circumstances can the result be between >3% and <4%...... or >6% and <7%.... or >9% and <10% but I am getting these 'rules' from a gov website and that's their scoring method so I can't change them... !

maabadi helped me yesterday with similar problem but this one is harder

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#### Fluff

##### MrExcel MVP, Moderator
Whilst I suspect there is an easier way, this seems to give the right result
Excel Formula:
``=IF(A1<1,0,IF(A1<6,(A1-1)/2+1,IF(A1<51,(A1-6)/22+4,IF(A1<201,(A1-51)/74.5+7,10))))/100``

##### Well-known Member
Try this but this won't work with Decimal number between 3 & 4, 6 & 7 , 50 & 51 , 200 & 201

Cell Formulas
RangeFormula
B2:B19B2=IF(A2<1, 0,IF(AND(A2>=1,A2<=5),0.01+0.02*(A2-1)/4,IF(AND(A2>=6,A2<=50),0.04+0.02*(A2-6)/44,IF(AND(A2>=51,A2<=200),0.07+0.02*(A2-51)/149,0.1))))
C2:C19C2=(IF(A2<1, 0,IF(AND(A2>=1,A2<=5),0.01+0.02*(A2-1)/4,IF(AND(A2>=6,A2<=50),0.04+0.02*(A2-6)/44,IF(AND(A2>=51,A2<=200),0.07+0.02*(A2-51)/149,0.1)))))*A2

#### BrutalLogiC

##### Active Member

Thank you both so much, both of these formulas seem to produce the same result and work great

#### Fluff

##### MrExcel MVP, Moderator
Glad we could help & thanks for the feedback.

##### Well-known Member
Hi BrutalLogic,

I know I'm late to the game but here's my offering with the CHOOSE option calculated with some finagling and the actual calculations using slope intercept formula y=mx+b

`=CHOOSE((MIN(5,ROUND(SQRT(SQRT(A1)),0)))+1,0,(A1+1)/2,(A1+82)/22,(A1+470.5)/74.5,10,10)`

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