224.92% is the change from 305 to 991
Calculation steps:
[( 991 - 305 ) ÷ 305] x 100 = 224.92%
Formula
Percentage change = [(991 - 305) / 305] x 100
Subtract the new number by the original number
991 - 305 = 686
686 ÷ 305 = 2.2491803278688525
2.2491803278688525 x 100 = 224.92%