64.02% is the change from 378 to 620
Calculation steps:
[( 620 - 378 ) ÷ 378] x 100 = 64.02%
Formula
Percentage change = [(620 - 378) / 378] x 100
Subtract the new number by the original number
620 - 378 = 242
242 ÷ 378 = 0.6402116402116402
0.6402116402116402 x 100 = 64.02%