-29.78% is the change from 591 to 415
Calculation steps:
[( 415 - 591 ) ÷ 591] x 100 = -29.78%
Formula
Percentage change = [(415 - 591) / 591] x 100
Subtract the new number by the original number
415 - 591 = -176
-176 ÷ 591 = -0.29780033840947545
-0.29780033840947545 x 100 = -29.78%