-67.2% is the change from 930 to 305
Calculation steps:
[( 305 - 930 ) ÷ 930] x 100 = -67.2%
Formula
Percentage change = [(305 - 930) / 930] x 100
Subtract the new number by the original number
305 - 930 = -625
-625 ÷ 930 = -0.6720430107526881
-0.6720430107526881 x 100 = -67.2%