Hello!
The formula for percentage change is:
(New number - Original number) / Original number × 100 = Percentage change
(3640-3250)/3250 x 100 =
(390)/3250 x 100 =
.12 x 100 = 12%
(4100-3640)/3640 x 100 =
(460)/3640 x 100 =
.1263736264 x 100 = ~ 12.6%
2001 to 2002 had a higher percent of increase.
Hope I helped!!