-66.95% is the change from 947 to 313
Calculation steps:
[( 313 - 947 ) ÷ 947] x 100 = -66.95%
Formula
Percentage change = [(313 - 947) / 947] x 100
Subtract the new number by the original number
313 - 947 = -634
-634 ÷ 947 = -0.6694825765575502
-0.6694825765575502 x 100 = -66.95%