210.66% is the change from 319 to 991
Calculation steps:
[( 991 - 319 ) ÷ 319] x 100 = 210.66%
Formula
Percentage change = [(991 - 319) / 319] x 100
Subtract the new number by the original number
991 - 319 = 672
672 ÷ 319 = 2.1065830721003134
2.1065830721003134 x 100 = 210.66%