-54.52% is the change from 930 to 423
Calculation steps:
[( 423 - 930 ) ÷ 930] x 100 = -54.52%
Formula
Percentage change = [(423 - 930) / 930] x 100
Subtract the new number by the original number
423 - 930 = -507
-507 ÷ 930 = -0.5451612903225806
-0.5451612903225806 x 100 = -54.52%