-58.53% is the change from 815 to 338
Calculation steps:
[( 338 - 815 ) ÷ 815] x 100 = -58.53%
Formula
Percentage change = [(338 - 815) / 815] x 100
Subtract the new number by the original number
338 - 815 = -477
-477 ÷ 815 = -0.5852760736196319
-0.5852760736196319 x 100 = -58.53%