-22.06% is the change from 843 to 657
Calculation steps:
[( 657 - 843 ) ÷ 843] x 100 = -22.06%
Formula
Percentage change = [(657 - 843) / 843] x 100
Subtract the new number by the original number
657 - 843 = -186
-186 ÷ 843 = -0.2206405693950178
-0.2206405693950178 x 100 = -22.06%