71.16% is the change from 378 to 647
Calculation steps:
[( 647 - 378 ) ÷ 378] x 100 = 71.16%
Formula
Percentage change = [(647 - 378) / 378] x 100
Subtract the new number by the original number
647 - 378 = 269
269 ÷ 378 = 0.7116402116402116
0.7116402116402116 x 100 = 71.16%