-74.59% is the change from 122 to 31
Calculation steps:
[( 31 - 122 ) ÷ 122] x 100 = -74.59%
Formula
Percentage change = [(31 - 122) / 122] x 100
Subtract the new number by the original number
31 - 122 = -91
-91 ÷ 122 = -0.7459016393442623
-0.7459016393442623 x 100 = -74.59%