-53.68% is the change from 870 to 403
Calculation steps:
[( 403 - 870 ) ÷ 870] x 100 = -53.68%
Formula
Percentage change = [(403 - 870) / 870] x 100
Subtract the new number by the original number
403 - 870 = -467
-467 ÷ 870 = -0.5367816091954023
-0.5367816091954023 x 100 = -53.68%