-46.16% is the change from 912 to 491
Calculation steps:
[( 491 - 912 ) ÷ 912] x 100 = -46.16%
Formula
Percentage change = [(491 - 912) / 912] x 100
Subtract the new number by the original number
491 - 912 = -421
-421 ÷ 912 = -0.4616228070175439
-0.4616228070175439 x 100 = -46.16%