-29% is the change from 707 to 502
Calculation steps:
[( 502 - 707 ) ÷ 707] x 100 = -29%
Formula
Percentage change = [(502 - 707) / 707] x 100
Subtract the new number by the original number
502 - 707 = -205
-205 ÷ 707 = -0.28995756718529
-0.28995756718529 x 100 = -29%