-74.04% is the change from 497 to 129
Calculation steps:
[( 129 - 497 ) ÷ 497] x 100 = -74.04%
Formula
Percentage change = [(129 - 497) / 497] x 100
Subtract the new number by the original number
129 - 497 = -368
-368 ÷ 497 = -0.7404426559356136
-0.7404426559356136 x 100 = -74.04%