-15.78% is the change from 849 to 715
Calculation steps:
[( 715 - 849 ) ÷ 849] x 100 = -15.78%
Formula
Percentage change = [(715 - 849) / 849] x 100
Subtract the new number by the original number
715 - 849 = -134
-134 ÷ 849 = -0.15783274440518258
-0.15783274440518258 x 100 = -15.78%