I use below code

priceatbuy=0;
for( i = 0; i < BarCount; i++ )
{
if( priceatbuy == 0 && Buy[ i ] )
priceatbuy = BuyPrice[ i ];

PlotText("P" + priceatbuy, SelectedValue(BarIndex()), L[SelectedValue(BarIndex())] - ist[SelectedValue(BarIndex())], colorWhite);
if( priceatbuy > 0 && SellPrice[ i ] < (priceatbuy - (0.027 * priceatbuy/100)) )
{
Sell[ i ] = 1;
SellPrice[ i ] = (priceatbuy - (0.027 * priceatbuy/100)) ;
plotShapes(shapeDownArrow*sell, colorpink );
priceatbuy = 0;
}
else
Sell[ i ] = 0;
}

With above plotText, when i print the variable "priceatBuy", i see the text is overlapped and I am not able to see the value correctly. Is it because that SellPrice[i] and BuyPrice[i] returning some other value that Plottext doesnt understand? If I print Sell[i] or Buy[i], it prints correctly. May I know how to get this value correctly.

PFA image

Your code is pretty much incorrect because of lacking basic skills in programming and mathematics.

Your usage of plot is not properly done. Plot shapes moves outside of loop.
And Plottext needs iteration of visible chart area only to get some signal text output on chart instead of iteration of entire barcount. Latter one is rather overkill. And there should be an additional condition inside such loop where there is text output at signal occurrence only. Another major mistake in your code is that you use array functions inside of barcount loop. That is similar horror as fingernails on a blackboard. In short it's a no go.

So better consult the AB documention first -> i.e. "Coding mistakes"
Also search "Understanding how AFL works".

Here is corrected SL loop

 

Code

percent = 2.7; // percent SL delay = 1; // buy entry bar delay Buycond = Cross( MACD(), Signal() ); // buy when macd crosses above of signal line Buy = Ref( Buycond, -delay ); BuyPrice = Open; Sell = 0; priceatbuy = 0; for( i = delay; i < BarCount; i++ ) { // setting SL line if( priceatbuy == 0 && Buy[ i ] ) priceatbuy = BuyPrice[ i ] * ( 1 - percent / 100 ); else { Buy[ i ] = 0; } // if SL is reached exit and reset Sellsignal = L[ i ] < priceatbuy; if( priceatbuy > 0 && Sellsignal ) { Sell[ i ] = 1; SellPrice[ i ] = Min( O[ i ], priceatbuy ); priceatbuy = 0; } else Sell[ i ] = 0; }

Keep in mind that upper loop contains SL exit only but no profit exit.
So you have to add some profit exit too otherwise you always exit at loss.

As seen here

Here is code including plot of shapes, text and SL line.
Again, the loop contains SL exit only. So you need to add some profit exit condition too.

 

Code

// fix of SL plot & text // by prouser // source https://nexusfi.com/amibroker/36055-plottext-result-overlapped.html percent = 2.7; // percent SL delay = 1; // buy entry bar delay Buycond = Cross( MACD(), Signal() ); // buy when macd crosses above of signal line Buy = Ref( Buycond, -delay ); BuyPrice = Open; Sell = 0; SLlong = Null; SLLineLong = Null; // array for( i = delay; i < BarCount; i++ ) { // setting long SL line if( IsNull( SLlong ) && Buy[ i ] ) SLlong = BuyPrice[ i ] * ( 1 - percent / 100 ); else { Buy[ i ] = 0; } // no shape buy signal if SL not hit if( NOT IsNull( SLlong ) && BuyCond[ i ] ) Buycond[ i ] = 0; // if SL is reached exit and reset Sellsignal = L[ i ] < SLlong; if( NOT IsNull( SLlong ) && Sellsignal ) { Sell[ i ] = 1; SellPrice[ i ] = Min( O[ i ], SLlong ); SLlong = Null; } else Sell[ i ] = 0; // // for plotting SL line array is required SLLineLong[i] = SLlong; } // Chart pane section if( Status( "action" ) == actionIndicator ) { SetChartOptions( 0, chartShowDates | chartShowArrows | chartWrapTitle ); // Plot price Plot( C, "", colorDefault, GetPriceStyle() ); // Plot SL line Plot( SLLineLong, "\nSL long", colorRed, styleLine | styleNoRescale ); // // Plot Shapes dist = -12; PlotShapes( shapeUpArrow * Buycond, colorGreen, 0, L, dist ); PlotShapes( shapeSmallCircle * Buy, colorGreen, 0, BuyPrice, 0 ); PlotShapes( shapeDownArrow * Sell, colorPink, 0, H, dist ); PlotShapes( shapeSmallCircle * Sell, colorPink, 0, SellPrice, 0 ); // // Plot signal text fnt = "Arial"; fntsize = 8; txtdist = 25 - dist; bi = Barindex(); fvb = FirstVisiblevalue( bi ); lvb = LastVisiblevalue( bi ); for( i = fvb; i <= lvb; i++ ) { // iterate through visible chart area only if( Buy[i] ) // plot text at signal occurences only PlotTextSetFont( StrFormat( "BP@\n%g", BuyPrice[ i ] ), fnt, fntsize, i, L[ i ], colorGreen, colorDefault, -txtdist + fntsize ); if( Sell[i] ) PlotTextSetFont( StrFormat( "SP@\n%g", SellPrice[ i ] ), fnt, fntsize, i, H[ i ], colorPink, colorDefault, txtdist ); } // _N( Title = StrFormat( "{{NAME}} - {{INTERVAL}} - {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%), Vol %g {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ), V ) ); // SetBarsRequired( 10000, 10000 ); }

EDIT: some code fix added