-71.25% is the change from 313 to 90
Calculation steps:
[( 90 - 313 ) ÷ 313] x 100 = -71.25%
Formula
Percentage change = [(90 - 313) / 313] x 100
Subtract the new number by the original number
90 - 313 = -223
-223 ÷ 313 = -0.7124600638977636
-0.7124600638977636 x 100 = -71.25%