-47.1% is the change from 930 to 492
Calculation steps:
[( 492 - 930 ) ÷ 930] x 100 = -47.1%
Formula
Percentage change = [(492 - 930) / 930] x 100
Subtract the new number by the original number
492 - 930 = -438
-438 ÷ 930 = -0.47096774193548385
-0.47096774193548385 x 100 = -47.1%