40.92% is the change from 457 to 644
Calculation steps:
[( 644 - 457 ) ÷ 457] x 100 = 40.92%
Formula
Percentage change = [(644 - 457) / 457] x 100
Subtract the new number by the original number
644 - 457 = 187
187 ÷ 457 = 0.40919037199124725
0.40919037199124725 x 100 = 40.92%