-94.25% is the change from 313 to 18
Calculation steps:
[( 18 - 313 ) ÷ 313] x 100 = -94.25%
Formula
Percentage change = [(18 - 313) / 313] x 100
Subtract the new number by the original number
18 - 313 = -295
-295 ÷ 313 = -0.9424920127795527
-0.9424920127795527 x 100 = -94.25%