-67.81% is the change from 494 to 159
Calculation steps:
[( 159 - 494 ) ÷ 494] x 100 = -67.81%
Formula
Percentage change = [(159 - 494) / 494] x 100
Subtract the new number by the original number
159 - 494 = -335
-335 ÷ 494 = -0.6781376518218624
-0.6781376518218624 x 100 = -67.81%