-60.24% is the change from 850 to 338
Calculation steps:
[( 338 - 850 ) ÷ 850] x 100 = -60.24%
Formula
Percentage change = [(338 - 850) / 850] x 100
Subtract the new number by the original number
338 - 850 = -512
-512 ÷ 850 = -0.6023529411764705
-0.6023529411764705 x 100 = -60.24%