-58.51% is the change from 870 to 361
Calculation steps:
[( 361 - 870 ) ÷ 870] x 100 = -58.51%
Formula
Percentage change = [(361 - 870) / 870] x 100
Subtract the new number by the original number
361 - 870 = -509
-509 ÷ 870 = -0.5850574712643678
-0.5850574712643678 x 100 = -58.51%