-27.25% is the change from 690 to 502
Calculation steps:
[( 502 - 690 ) ÷ 690] x 100 = -27.25%
Formula
Percentage change = [(502 - 690) / 690] x 100
Subtract the new number by the original number
502 - 690 = -188
-188 ÷ 690 = -0.27246376811594203
-0.27246376811594203 x 100 = -27.25%