37.57% is the change from 378 to 520
Calculation steps:
[( 520 - 378 ) ÷ 378] x 100 = 37.57%
Formula
Percentage change = [(520 - 378) / 378] x 100
Subtract the new number by the original number
520 - 378 = 142
142 ÷ 378 = 0.37566137566137564
0.37566137566137564 x 100 = 37.57%