-20.23% is the change from 870 to 694
Calculation steps:
[( 694 - 870 ) ÷ 870] x 100 = -20.23%
Formula
Percentage change = [(694 - 870) / 870] x 100
Subtract the new number by the original number
694 - 870 = -176
-176 ÷ 870 = -0.20229885057471264
-0.20229885057471264 x 100 = -20.23%