-55.38% is the change from 930 to 415
Calculation steps:
[( 415 - 930 ) ÷ 930] x 100 = -55.38%
Formula
Percentage change = [(415 - 930) / 930] x 100
Subtract the new number by the original number
415 - 930 = -515
-515 ÷ 930 = -0.553763440860215
-0.553763440860215 x 100 = -55.38%