62.63% is the change from 396 to 644
Calculation steps:
[( 644 - 396 ) ÷ 396] x 100 = 62.63%
Formula
Percentage change = [(644 - 396) / 396] x 100
Subtract the new number by the original number
644 - 396 = 248
248 ÷ 396 = 0.6262626262626263
0.6262626262626263 x 100 = 62.63%