-20.46% is the change from 870 to 692
Calculation steps:
[( 692 - 870 ) ÷ 870] x 100 = -20.46%
Formula
Percentage change = [(692 - 870) / 870] x 100
Subtract the new number by the original number
692 - 870 = -178
-178 ÷ 870 = -0.2045977011494253
-0.2045977011494253 x 100 = -20.46%