-62.4% is the change from 500 to 188
Calculation steps:
[( 188 - 500 ) ÷ 500] x 100 = -62.4%
Formula
Percentage change = [(188 - 500) / 500] x 100
Subtract the new number by the original number
188 - 500 = -312
-312 ÷ 500 = -0.624
-0.624 x 100 = -62.4%