-71.49% is the change from 947 to 270
Calculation steps:
[( 270 - 947 ) ÷ 947] x 100 = -71.49%
Formula
Percentage change = [(270 - 947) / 947] x 100
Subtract the new number by the original number
270 - 947 = -677
-677 ÷ 947 = -0.7148891235480465
-0.7148891235480465 x 100 = -71.49%