-65.57% is the change from 122 to 42
Calculation steps:
[( 42 - 122 ) ÷ 122] x 100 = -65.57%
Formula
Percentage change = [(42 - 122) / 122] x 100
Subtract the new number by the original number
42 - 122 = -80
-80 ÷ 122 = -0.6557377049180327
-0.6557377049180327 x 100 = -65.57%