Relative strength of sectors vs Nifty

Charts os sectors are compared with Nifty. Opened Nifty chart and clicked on compare. Added the sectors one by one.
The upper ones are more bullish but they should be checked again by division test, e.g. by writing
NSE:CNXPSUBANK/NSE:NIFTY
in symbol search. Then the recent trends can be determined.
Comparison charts depend on starting point, charts change when the period under review changes but division charts do not change.