41.3% is the change from 644 to 910
Calculation steps:
[( 910 - 644 ) ÷ 644] x 100 = 41.3%
Formula
Percentage change = [(910 - 644) / 644] x 100
Subtract the new number by the original number
910 - 644 = 266
266 ÷ 644 = 0.41304347826086957
0.41304347826086957 x 100 = 41.3%