-66.81% is the change from 928 to 308
Calculation steps:
[( 308 - 928 ) ÷ 928] x 100 = -66.81%
Formula
Percentage change = [(308 - 928) / 928] x 100
Subtract the new number by the original number
308 - 928 = -620
-620 ÷ 928 = -0.6681034482758621
-0.6681034482758621 x 100 = -66.81%