44.6% is the change from 639 to 924
Calculation steps:
[( 924 - 639 ) ÷ 639] x 100 = 44.6%
Formula
Percentage change = [(924 - 639) / 639] x 100
Subtract the new number by the original number
924 - 639 = 285
285 ÷ 639 = 0.4460093896713615
0.4460093896713615 x 100 = 44.6%