112.13% is the change from 305 to 647
Calculation steps:
[( 647 - 305 ) ÷ 305] x 100 = 112.13%
Formula
Percentage change = [(647 - 305) / 305] x 100
Subtract the new number by the original number
647 - 305 = 342
342 ÷ 305 = 1.1213114754098361
1.1213114754098361 x 100 = 112.13%