64.29% is the change from 378 to 621
Calculation steps:
[( 621 - 378 ) ÷ 378] x 100 = 64.29%
Formula
Percentage change = [(621 - 378) / 378] x 100
Subtract the new number by the original number
621 - 378 = 243
243 ÷ 378 = 0.6428571428571429
0.6428571428571429 x 100 = 64.29%