-40.58% is the change from 313 to 186
Calculation steps:
[( 186 - 313 ) ÷ 313] x 100 = -40.58%
Formula
Percentage change = [(186 - 313) / 313] x 100
Subtract the new number by the original number
186 - 313 = -127
-127 ÷ 313 = -0.4057507987220447
-0.4057507987220447 x 100 = -40.58%