198.36% is the change from 305 to 910
Calculation steps:
[( 910 - 305 ) ÷ 305] x 100 = 198.36%
Formula
Percentage change = [(910 - 305) / 305] x 100
Subtract the new number by the original number
910 - 305 = 605
605 ÷ 305 = 1.9836065573770492
1.9836065573770492 x 100 = 198.36%