-48.77% is the change from 851 to 436
Calculation steps:
[( 436 - 851 ) ÷ 851] x 100 = -48.77%
Formula
Percentage change = [(436 - 851) / 851] x 100
Subtract the new number by the original number
436 - 851 = -415
-415 ÷ 851 = -0.48766157461809634
-0.48766157461809634 x 100 = -48.77%