-29.29% is the change from 717 to 507
Calculation steps:
[( 507 - 717 ) ÷ 717] x 100 = -29.29%
Formula
Percentage change = [(507 - 717) / 717] x 100
Subtract the new number by the original number
507 - 717 = -210
-210 ÷ 717 = -0.2928870292887029
-0.2928870292887029 x 100 = -29.29%