-37.63% is the change from 497 to 310
Calculation steps:
[( 310 - 497 ) ÷ 497] x 100 = -37.63%
Formula
Percentage change = [(310 - 497) / 497] x 100
Subtract the new number by the original number
310 - 497 = -187
-187 ÷ 497 = -0.3762575452716298
-0.3762575452716298 x 100 = -37.63%