-69.07% is the change from 873 to 270
Calculation steps:
[( 270 - 873 ) ÷ 873] x 100 = -69.07%
Formula
Percentage change = [(270 - 873) / 873] x 100
Subtract the new number by the original number
270 - 873 = -603
-603 ÷ 873 = -0.6907216494845361
-0.6907216494845361 x 100 = -69.07%