-60.65% is the change from 310 to 122
Calculation steps:
[( 122 - 310 ) ÷ 310] x 100 = -60.65%
Formula
Percentage change = [(122 - 310) / 310] x 100
Subtract the new number by the original number
122 - 310 = -188
-188 ÷ 310 = -0.6064516129032258
-0.6064516129032258 x 100 = -60.65%