-70.32% is the change from 310 to 92
Calculation steps:
[( 92 - 310 ) ÷ 310] x 100 = -70.32%
Formula
Percentage change = [(92 - 310) / 310] x 100
Subtract the new number by the original number
92 - 310 = -218
-218 ÷ 310 = -0.7032258064516129
-0.7032258064516129 x 100 = -70.32%