111.03% is the change from 290 to 612
Calculation steps:
[( 612 - 290 ) ÷ 290] x 100 = 111.03%
Formula
Percentage change = [(612 - 290) / 290] x 100
Subtract the new number by the original number
612 - 290 = 322
322 ÷ 290 = 1.110344827586207
1.110344827586207 x 100 = 111.03%