44.68% is the change from 423 to 612
Calculation steps:
[( 612 - 423 ) ÷ 423] x 100 = 44.68%
Formula
Percentage change = [(612 - 423) / 423] x 100
Subtract the new number by the original number
612 - 423 = 189
189 ÷ 423 = 0.44680851063829785
0.44680851063829785 x 100 = 44.68%