141.84% is the change from 337 to 815
Calculation steps:
[( 815 - 337 ) ÷ 337] x 100 = 141.84%
Formula
Percentage change = [(815 - 337) / 337] x 100
Subtract the new number by the original number
815 - 337 = 478
478 ÷ 337 = 1.4183976261127595
1.4183976261127595 x 100 = 141.84%