-47.47% is the change from 870 to 457
Calculation steps:
[( 457 - 870 ) ÷ 870] x 100 = -47.47%
Formula
Percentage change = [(457 - 870) / 870] x 100
Subtract the new number by the original number
457 - 870 = -413
-413 ÷ 870 = -0.4747126436781609
-0.4747126436781609 x 100 = -47.47%