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Formulas
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Total cards: 10•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (10)
#1
Front (Question)
Average
Back (Answer)
(x+y+x)/n n= the number of values given
#2
Front (Question)
Percent of total
Back (Answer)
(sebset value/total value) x 100
#3
Front (Question)
Percent change
Back (Answer)
New-Old / Old x 100
#4
Front (Question)
Annual rate of change
Back (Answer)
(final value - initial value) / final year - initial year
#5
Front (Question)
Net Primary Productivity
Back (Answer)
GPP - Respiration = NPP
#6
Front (Question)
Global/ national population growth rates
Back (Answer)
population growth rate (%) = (CBR - CDR) / 10
#7
Front (Question)
Global/ national population growth rates WITH MIGRATION
Back (Answer)
Population growth rate (%) = (CBR-CDR +/- CNMR) / 10 CNMR = crude net migration rate
#8
Front (Question)
Doubling time (years)
Back (Answer)
70/ growth rate %
#9
Front (Question)
Population Density
Back (Answer)
70 / growth rate (%)
#10
Front (Question)
Per captia
Back (Answer)
total measurement / population size