-67.79% is the change from 947 to 305
Calculation steps:
[( 305 - 947 ) ÷ 947] x 100 = -67.79%
Formula
Percentage change = [(305 - 947) / 947] x 100
Subtract the new number by the original number
305 - 947 = -642
-642 ÷ 947 = -0.6779303062302007
-0.6779303062302007 x 100 = -67.79%