-97.43% is the change from 311 to 8
Calculation steps:
[( 8 - 311 ) ÷ 311] x 100 = -97.43%
Formula
Percentage change = [(8 - 311) / 311] x 100
Subtract the new number by the original number
8 - 311 = -303
-303 ÷ 311 = -0.9742765273311897
-0.9742765273311897 x 100 = -97.43%