222.48% is the change from 307 to 990
Calculation steps:
[( 990 - 307 ) ÷ 307] x 100 = 222.48%
Formula
Percentage change = [(990 - 307) / 307] x 100
Subtract the new number by the original number
990 - 307 = 683
683 ÷ 307 = 2.224755700325733
2.224755700325733 x 100 = 222.48%