121.69% is the change from 378 to 838
Calculation steps:
[( 838 - 378 ) ÷ 378] x 100 = 121.69%
Formula
Percentage change = [(838 - 378) / 378] x 100
Subtract the new number by the original number
838 - 378 = 460
460 ÷ 378 = 1.216931216931217
1.216931216931217 x 100 = 121.69%