-69.4% is the change from 500 to 153
Calculation steps:
[( 153 - 500 ) ÷ 500] x 100 = -69.4%
Formula
Percentage change = [(153 - 500) / 500] x 100
Subtract the new number by the original number
153 - 500 = -347
-347 ÷ 500 = -0.694
-0.694 x 100 = -69.4%