445.3% is the change from 117 to 638
Calculation steps:
[( 638 - 117 ) ÷ 117] x 100 = 445.3%
Formula
Percentage change = [(638 - 117) / 117] x 100
Subtract the new number by the original number
638 - 117 = 521
521 ÷ 117 = 4.452991452991453
4.452991452991453 x 100 = 445.3%