115.49% is the change from 284 to 612
Calculation steps:
[( 612 - 284 ) ÷ 284] x 100 = 115.49%
Formula
Percentage change = [(612 - 284) / 284] x 100
Subtract the new number by the original number
612 - 284 = 328
328 ÷ 284 = 1.1549295774647887
1.1549295774647887 x 100 = 115.49%