-83.47% is the change from 992 to 164
Calculation steps:
[( 164 - 992 ) ÷ 992] x 100 = -83.47%
Formula
Percentage change = [(164 - 992) / 992] x 100
Subtract the new number by the original number
164 - 992 = -828
-828 ÷ 992 = -0.8346774193548387
-0.8346774193548387 x 100 = -83.47%