-62.3% is the change from 825 to 311
Calculation steps:
[( 311 - 825 ) ÷ 825] x 100 = -62.3%
Formula
Percentage change = [(311 - 825) / 825] x 100
Subtract the new number by the original number
311 - 825 = -514
-514 ÷ 825 = -0.623030303030303
-0.623030303030303 x 100 = -62.3%