54.58% is the change from 612 to 946
Calculation steps:
[( 946 - 612 ) ÷ 612] x 100 = 54.58%
Formula
Percentage change = [(946 - 612) / 612] x 100
Subtract the new number by the original number
946 - 612 = 334
334 ÷ 612 = 0.545751633986928
0.545751633986928 x 100 = 54.58%