-45.89% is the change from 839 to 454
Calculation steps:
[( 454 - 839 ) ÷ 839] x 100 = -45.89%
Formula
Percentage change = [(454 - 839) / 839] x 100
Subtract the new number by the original number
454 - 839 = -385
-385 ÷ 839 = -0.45887961859356374
-0.45887961859356374 x 100 = -45.89%