-82.7% is the change from 994 to 172
Calculation steps:
[( 172 - 994 ) ÷ 994] x 100 = -82.7%
Formula
Percentage change = [(172 - 994) / 994] x 100
Subtract the new number by the original number
172 - 994 = -822
-822 ÷ 994 = -0.8269617706237424
-0.8269617706237424 x 100 = -82.7%