-64.61% is the change from 890 to 315
Calculation steps:
[( 315 - 890 ) ÷ 890] x 100 = -64.61%
Formula
Percentage change = [(315 - 890) / 890] x 100
Subtract the new number by the original number
315 - 890 = -575
-575 ÷ 890 = -0.6460674157303371
-0.6460674157303371 x 100 = -64.61%