-81.6% is the change from 924 to 170
Calculation steps:
[( 170 - 924 ) ÷ 924] x 100 = -81.6%
Formula
Percentage change = [(170 - 924) / 924] x 100
Subtract the new number by the original number
170 - 924 = -754
-754 ÷ 924 = -0.816017316017316
-0.816017316017316 x 100 = -81.6%