-62.55% is the change from 833 to 312
Calculation steps:
[( 312 - 833 ) ÷ 833] x 100 = -62.55%
Formula
Percentage change = [(312 - 833) / 833] x 100
Subtract the new number by the original number
312 - 833 = -521
-521 ÷ 833 = -0.6254501800720288
-0.6254501800720288 x 100 = -62.55%