-22.05% is the change from 322 to 251
Calculation steps:
[( 251 - 322 ) ÷ 322] x 100 = -22.05%
Formula
Percentage change = [(251 - 322) / 322] x 100
Subtract the new number by the original number
251 - 322 = -71
-71 ÷ 322 = -0.2204968944099379
-0.2204968944099379 x 100 = -22.05%