121.43% is the change from 378 to 837
Calculation steps:
[( 837 - 378 ) ÷ 378] x 100 = 121.43%
Formula
Percentage change = [(837 - 378) / 378] x 100
Subtract the new number by the original number
837 - 378 = 459
459 ÷ 378 = 1.2142857142857142
1.2142857142857142 x 100 = 121.43%