212.3% is the change from 317 to 990
Calculation steps:
[( 990 - 317 ) ÷ 317] x 100 = 212.3%
Formula
Percentage change = [(990 - 317) / 317] x 100
Subtract the new number by the original number
990 - 317 = 673
673 ÷ 317 = 2.1230283911671926
2.1230283911671926 x 100 = 212.3%