45.03% is the change from 644 to 934
Calculation steps:
[( 934 - 644 ) ÷ 644] x 100 = 45.03%
Formula
Percentage change = [(934 - 644) / 644] x 100
Subtract the new number by the original number
934 - 644 = 290
290 ÷ 644 = 0.4503105590062112
0.4503105590062112 x 100 = 45.03%