-57.47% is the change from 870 to 370
Calculation steps:
[( 370 - 870 ) ÷ 870] x 100 = -57.47%
Formula
Percentage change = [(370 - 870) / 870] x 100
Subtract the new number by the original number
370 - 870 = -500
-500 ÷ 870 = -0.5747126436781609
-0.5747126436781609 x 100 = -57.47%