56.74% is the change from 638 to 1000
Calculation steps:
[( 1000 - 638 ) ÷ 638] x 100 = 56.74%
Formula
Percentage change = [(1000 - 638) / 638] x 100
Subtract the new number by the original number
1000 - 638 = 362
362 ÷ 638 = 0.567398119122257
0.567398119122257 x 100 = 56.74%