-7.13% is the change from 870 to 808
Calculation steps:
[( 808 - 870 ) ÷ 870] x 100 = -7.13%
Formula
Percentage change = [(808 - 870) / 870] x 100
Subtract the new number by the original number
808 - 870 = -62
-62 ÷ 870 = -0.07126436781609195
-0.07126436781609195 x 100 = -7.13%