-42.99% is the change from 870 to 496
Calculation steps:
[( 496 - 870 ) ÷ 870] x 100 = -42.99%
Formula
Percentage change = [(496 - 870) / 870] x 100
Subtract the new number by the original number
496 - 870 = -374
-374 ÷ 870 = -0.4298850574712644
-0.4298850574712644 x 100 = -42.99%