-14.21% is the change from 591 to 507
Calculation steps:
[( 507 - 591 ) ÷ 591] x 100 = -14.21%
Formula
Percentage change = [(507 - 591) / 591] x 100
Subtract the new number by the original number
507 - 591 = -84
-84 ÷ 591 = -0.14213197969543148
-0.14213197969543148 x 100 = -14.21%