-29.25% is the change from 947 to 670
Calculation steps:
[( 670 - 947 ) ÷ 947] x 100 = -29.25%
Formula
Percentage change = [(670 - 947) / 947] x 100
Subtract the new number by the original number
670 - 947 = -277
-277 ÷ 947 = -0.2925026399155227
-0.2925026399155227 x 100 = -29.25%