-37.22% is the change from 497 to 312
Calculation steps:
[( 312 - 497 ) ÷ 497] x 100 = -37.22%
Formula
Percentage change = [(312 - 497) / 497] x 100
Subtract the new number by the original number
312 - 497 = -185
-185 ÷ 497 = -0.3722334004024145
-0.3722334004024145 x 100 = -37.22%