69.58% is the change from 378 to 641
Calculation steps:
[( 641 - 378 ) ÷ 378] x 100 = 69.58%
Formula
Percentage change = [(641 - 378) / 378] x 100
Subtract the new number by the original number
641 - 378 = 263
263 ÷ 378 = 0.6957671957671958
0.6957671957671958 x 100 = 69.58%