278.1% is the change from 105 to 397
Calculation steps:
[( 397 - 105 ) ÷ 105] x 100 = 278.1%
Formula
Percentage change = [(397 - 105) / 105] x 100
Subtract the new number by the original number
397 - 105 = 292
292 ÷ 105 = 2.780952380952381
2.780952380952381 x 100 = 278.1%