How to get the Date for 30% amount received

[Vikas_Salvi]

Unit	Rcpt Date	Sum of Amt-PS	Sum of Percentage	Percentage
C-1001	23-Dec-23​	4,76,190	5%	5%​
C-1001	22-Jan-24​	4,47,620	4%	9%​
C-1001	19-Feb-24​	9,52,380	9%	18%​
C-1001	20-Feb-24​	9,09,605	9%	26%​
C-1001	23-Feb-24​	6,50,000	6%	33%​
C-1001	15-Mar-24​	2,48,306	2%	35%​
C-1003	23-Dec-23​	95,238	1%	1%​
C-1003	08-Jan-24​	1,02,096	1%	3%​
C-1003	12-Feb-24​	18,53,928	27%	30%​
C-1004	27-Feb-24​	95,238	1%	1%​
C-1004	01-Mar-24​	-	0%	1%​
C-1004	07-Mar-24​	9,524	0%	2%​
C-1004	08-Mar-24​	1,71,428	3%	4%​
C-1004	25-Mar-24​	15,74,251	23%	28%​
C-1004	29-Mar-24​	5,00,294	7%	35%​

 

[p45cal]

Maybe, just maybe:

=INDEX($B$2:$B$16,XMATCH(0.3,IF($A$2:$A$16=A2,$E$2:$E$16),1))