-60.52% is the change from 309 to 122
Calculation steps:
[( 122 - 309 ) ÷ 309] x 100 = -60.52%
Formula
Percentage change = [(122 - 309) / 309] x 100
Subtract the new number by the original number
122 - 309 = -187
-187 ÷ 309 = -0.6051779935275081
-0.6051779935275081 x 100 = -60.52%