-26.62% is the change from 849 to 623
Calculation steps:
[( 623 - 849 ) ÷ 849] x 100 = -26.62%
Formula
Percentage change = [(623 - 849) / 849] x 100
Subtract the new number by the original number
623 - 849 = -226
-226 ÷ 849 = -0.2661955241460542
-0.2661955241460542 x 100 = -26.62%