-67.34% is the change from 493 to 161
Calculation steps:
[( 161 - 493 ) ÷ 493] x 100 = -67.34%
Formula
Percentage change = [(161 - 493) / 493] x 100
Subtract the new number by the original number
161 - 493 = -332
-332 ÷ 493 = -0.6734279918864098
-0.6734279918864098 x 100 = -67.34%