103.7% is the change from 378 to 770
Calculation steps:
[( 770 - 378 ) ÷ 378] x 100 = 103.7%
Formula
Percentage change = [(770 - 378) / 378] x 100
Subtract the new number by the original number
770 - 378 = 392
392 ÷ 378 = 1.037037037037037
1.037037037037037 x 100 = 103.7%