-32.84% is the change from 947 to 636
Calculation steps:
[( 636 - 947 ) ÷ 947] x 100 = -32.84%
Formula
Percentage change = [(636 - 947) / 947] x 100
Subtract the new number by the original number
636 - 947 = -311
-311 ÷ 947 = -0.32840549102428723
-0.32840549102428723 x 100 = -32.84%