-67.27% is the change from 947 to 310
Calculation steps:
[( 310 - 947 ) ÷ 947] x 100 = -67.27%
Formula
Percentage change = [(310 - 947) / 947] x 100
Subtract the new number by the original number
310 - 947 = -637
-637 ÷ 947 = -0.672650475184794
-0.672650475184794 x 100 = -67.27%