-46.65% is the change from 851 to 454
Calculation steps:
[( 454 - 851 ) ÷ 851] x 100 = -46.65%
Formula
Percentage change = [(454 - 851) / 851] x 100
Subtract the new number by the original number
454 - 851 = -397
-397 ÷ 851 = -0.46650998824911866
-0.46650998824911866 x 100 = -46.65%