198.04% is the change from 306 to 912
Calculation steps:
[( 912 - 306 ) ÷ 306] x 100 = 198.04%
Formula
Percentage change = [(912 - 306) / 306] x 100
Subtract the new number by the original number
912 - 306 = 606
606 ÷ 306 = 1.9803921568627452
1.9803921568627452 x 100 = 198.04%