45.1% is the change from 439 to 637
Calculation steps:
[( 637 - 439 ) ÷ 439] x 100 = 45.1%
Formula
Percentage change = [(637 - 439) / 439] x 100
Subtract the new number by the original number
637 - 439 = 198
198 ÷ 439 = 0.4510250569476082
0.4510250569476082 x 100 = 45.1%