-42.76% is the change from 870 to 498
Calculation steps:
[( 498 - 870 ) ÷ 870] x 100 = -42.76%
Formula
Percentage change = [(498 - 870) / 870] x 100
Subtract the new number by the original number
498 - 870 = -372
-372 ÷ 870 = -0.42758620689655175
-0.42758620689655175 x 100 = -42.76%