39.66% is the change from 648 to 905
Calculation steps:
[( 905 - 648 ) ÷ 648] x 100 = 39.66%
Formula
Percentage change = [(905 - 648) / 648] x 100
Subtract the new number by the original number
905 - 648 = 257
257 ÷ 648 = 0.3966049382716049
0.3966049382716049 x 100 = 39.66%