344.71% is the change from 85 to 378
Calculation steps:
[( 378 - 85 ) ÷ 85] x 100 = 344.71%
Formula
Percentage change = [(378 - 85) / 85] x 100
Subtract the new number by the original number
378 - 85 = 293
293 ÷ 85 = 3.447058823529412
3.447058823529412 x 100 = 344.71%