42.47% is the change from 664 to 946
Calculation steps:
[( 946 - 664 ) ÷ 664] x 100 = 42.47%
Formula
Percentage change = [(946 - 664) / 664] x 100
Subtract the new number by the original number
946 - 664 = 282
282 ÷ 664 = 0.4246987951807229
0.4246987951807229 x 100 = 42.47%