-11.57% is the change from 363 to 321
Calculation steps:
[( 321 - 363 ) ÷ 363] x 100 = -11.57%
Formula
Percentage change = [(321 - 363) / 363] x 100
Subtract the new number by the original number
321 - 363 = -42
-42 ÷ 363 = -0.11570247933884298
-0.11570247933884298 x 100 = -11.57%