-68.83% is the change from 494 to 154
Calculation steps:
[( 154 - 494 ) ÷ 494] x 100 = -68.83%
Formula
Percentage change = [(154 - 494) / 494] x 100
Subtract the new number by the original number
154 - 494 = -340
-340 ÷ 494 = -0.6882591093117408
-0.6882591093117408 x 100 = -68.83%