142.31% is the change from 338 to 819
Calculation steps:
[( 819 - 338 ) ÷ 338] x 100 = 142.31%
Formula
Percentage change = [(819 - 338) / 338] x 100
Subtract the new number by the original number
819 - 338 = 481
481 ÷ 338 = 1.4230769230769231
1.4230769230769231 x 100 = 142.31%