A formula to calculate the bad / poor / good performance factor after a trading halt or suspension is below....
PF = Performance Factor %
Where
CSP = Current SP
SPS= SP while Suspended
X = 7
Y = 6
Z = Days suspended
PF=((X/Y+1)*((CSP/SPS)-1)*100)/((1+Z)/(Z+1))
Note - When PF =
A number < Zero is bad
A number > Zero is good
A zero is neutral
The bigger the number the better!