-70.1% is the change from 873 to 261
Calculation steps:
[( 261 - 873 ) ÷ 873] x 100 = -70.1%
Formula
Percentage change = [(261 - 873) / 873] x 100
Subtract the new number by the original number
261 - 873 = -612
-612 ÷ 873 = -0.7010309278350515
-0.7010309278350515 x 100 = -70.1%