-69.82% is the change from 497 to 150
Calculation steps:
[( 150 - 497 ) ÷ 497] x 100 = -69.82%
Formula
Percentage change = [(150 - 497) / 497] x 100
Subtract the new number by the original number
150 - 497 = -347
-347 ÷ 497 = -0.6981891348088531
-0.6981891348088531 x 100 = -69.82%