-87.76% is the change from 997 to 122
Calculation steps:
[( 122 - 997 ) ÷ 997] x 100 = -87.76%
Formula
Percentage change = [(122 - 997) / 997] x 100
Subtract the new number by the original number
122 - 997 = -875
-875 ÷ 997 = -0.8776328986960883
-0.8776328986960883 x 100 = -87.76%