-66.34% is the change from 930 to 313
Calculation steps:
[( 313 - 930 ) ÷ 930] x 100 = -66.34%
Formula
Percentage change = [(313 - 930) / 930] x 100
Subtract the new number by the original number
313 - 930 = -617
-617 ÷ 930 = -0.6634408602150538
-0.6634408602150538 x 100 = -66.34%