-54.85% is the change from 691 to 312
Calculation steps:
[( 312 - 691 ) ÷ 691] x 100 = -54.85%
Formula
Percentage change = [(312 - 691) / 691] x 100
Subtract the new number by the original number
312 - 691 = -379
-379 ÷ 691 = -0.548480463096961
-0.548480463096961 x 100 = -54.85%