-14.42% is the change from 215 to 184
Calculation steps:
[( 184 - 215 ) ÷ 215] x 100 = -14.42%
Formula
Percentage change = [(184 - 215) / 215] x 100
Subtract the new number by the original number
184 - 215 = -31
-31 ÷ 215 = -0.14418604651162792
-0.14418604651162792 x 100 = -14.42%