-31.78% is the change from 494 to 337
Calculation steps:
[( 337 - 494 ) ÷ 494] x 100 = -31.78%
Formula
Percentage change = [(337 - 494) / 494] x 100
Subtract the new number by the original number
337 - 494 = -157
-157 ÷ 494 = -0.31781376518218624
-0.31781376518218624 x 100 = -31.78%