-69.51% is the change from 305 to 93
Calculation steps:
[( 93 - 305 ) ÷ 305] x 100 = -69.51%
Formula
Percentage change = [(93 - 305) / 305] x 100
Subtract the new number by the original number
93 - 305 = -212
-212 ÷ 305 = -0.6950819672131148
-0.6950819672131148 x 100 = -69.51%