-82.1% is the change from 849 to 152
Calculation steps:
[( 152 - 849 ) ÷ 849] x 100 = -82.1%
Formula
Percentage change = [(152 - 849) / 849] x 100
Subtract the new number by the original number
152 - 849 = -697
-697 ÷ 849 = -0.8209658421672555
-0.8209658421672555 x 100 = -82.1%