63.04% is the change from 395 to 644
Calculation steps:
[( 644 - 395 ) ÷ 395] x 100 = 63.04%
Formula
Percentage change = [(644 - 395) / 395] x 100
Subtract the new number by the original number
644 - 395 = 249
249 ÷ 395 = 0.6303797468354431
0.6303797468354431 x 100 = 63.04%