-84.1% is the change from 843 to 134
Calculation steps:
[( 134 - 843 ) ÷ 843] x 100 = -84.1%
Formula
Percentage change = [(134 - 843) / 843] x 100
Subtract the new number by the original number
134 - 843 = -709
-709 ÷ 843 = -0.8410438908659549
-0.8410438908659549 x 100 = -84.1%