-85.42% is the change from 837 to 122
Calculation steps:
[( 122 - 837 ) ÷ 837] x 100 = -85.42%
Formula
Percentage change = [(122 - 837) / 837] x 100
Subtract the new number by the original number
122 - 837 = -715
-715 ÷ 837 = -0.8542413381123058
-0.8542413381123058 x 100 = -85.42%