-60.9% is the change from 312 to 122
Calculation steps:
[( 122 - 312 ) ÷ 312] x 100 = -60.9%
Formula
Percentage change = [(122 - 312) / 312] x 100
Subtract the new number by the original number
122 - 312 = -190
-190 ÷ 312 = -0.6089743589743589
-0.6089743589743589 x 100 = -60.9%