51.49% is the change from 404 to 612
Calculation steps:
[( 612 - 404 ) ÷ 404] x 100 = 51.49%
Formula
Percentage change = [(612 - 404) / 404] x 100
Subtract the new number by the original number
612 - 404 = 208
208 ÷ 404 = 0.5148514851485149
0.5148514851485149 x 100 = 51.49%