4815.38% is the change from 13 to 639
Calculation steps:
[( 639 - 13 ) ÷ 13] x 100 = 4815.38%
Formula
Percentage change = [(639 - 13) / 13] x 100
Subtract the new number by the original number
639 - 13 = 626
626 ÷ 13 = 48.15384615384615
48.15384615384615 x 100 = 4815.38%