-63.08% is the change from 845 to 312
Calculation steps:
[( 312 - 845 ) ÷ 845] x 100 = -63.08%
Formula
Percentage change = [(312 - 845) / 845] x 100
Subtract the new number by the original number
312 - 845 = -533
-533 ÷ 845 = -0.6307692307692307
-0.6307692307692307 x 100 = -63.08%