-32.82% is the change from 323 to 217
Calculation steps:
[( 217 - 323 ) ÷ 323] x 100 = -32.82%
Formula
Percentage change = [(217 - 323) / 323] x 100
Subtract the new number by the original number
217 - 323 = -106
-106 ÷ 323 = -0.3281733746130031
-0.3281733746130031 x 100 = -32.82%