Table:
0
A
B
C
D
E
1
Draw
Artist
Song
Percentage
Place
2
1
Iskra & Misha Iliev
"Dokosni me"
41.26%
1
3
2
Prima Vista
"Let's Spread Love"
17.14%
3
4
3
Konkurent
"Placha v noshtta"
4.23%
5
5
4
Mario Marinov
"La ragazza che ho lasciato"
14.40%
4
6
5
Tereza Kolarova
"Samo endo more"
22.97%
2

Questions and formulas:
Question: What Artist had a Percentage of 17.14%?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="17.14%"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,D2:D6="17.14%"),2))
Level: medium
Question: What Percentage has a Place of 5?
Formula: LET(query1,SUMMARIZE(D1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)=5))
Formula2: LET(query1,SUMMARIZE(D2:D6,SUMX(E2:E6)),FILTER(query1,CHOOSECOLS(query1,2)=5))
Level: hard