197.07% is the change from 307 to 912
Calculation steps:
[( 912 - 307 ) ÷ 307] x 100 = 197.07%
Formula
Percentage change = [(912 - 307) / 307] x 100
Subtract the new number by the original number
912 - 307 = 605
605 ÷ 307 = 1.9706840390879479
1.9706840390879479 x 100 = 197.07%