-70.62% is the change from 497 to 146
Calculation steps:
[( 146 - 497 ) ÷ 497] x 100 = -70.62%
Formula
Percentage change = [(146 - 497) / 497] x 100
Subtract the new number by the original number
146 - 497 = -351
-351 ÷ 497 = -0.7062374245472837
-0.7062374245472837 x 100 = -70.62%