-55.27% is the change from 921 to 412
Calculation steps:
[( 412 - 921 ) ÷ 921] x 100 = -55.27%
Formula
Percentage change = [(412 - 921) / 921] x 100
Subtract the new number by the original number
412 - 921 = -509
-509 ÷ 921 = -0.5526601520086862
-0.5526601520086862 x 100 = -55.27%