-46.01% is the change from 915 to 494
Calculation steps:
[( 494 - 915 ) ÷ 915] x 100 = -46.01%
Formula
Percentage change = [(494 - 915) / 915] x 100
Subtract the new number by the original number
494 - 915 = -421
-421 ÷ 915 = -0.4601092896174863
-0.4601092896174863 x 100 = -46.01%