-54.93% is the change from 690 to 311
Calculation steps:
[( 311 - 690 ) ÷ 690] x 100 = -54.93%
Formula
Percentage change = [(311 - 690) / 690] x 100
Subtract the new number by the original number
311 - 690 = -379
-379 ÷ 690 = -0.5492753623188406
-0.5492753623188406 x 100 = -54.93%