-14.88% is the change from 215 to 183
Calculation steps:
[( 183 - 215 ) ÷ 215] x 100 = -14.88%
Formula
Percentage change = [(183 - 215) / 215] x 100
Subtract the new number by the original number
183 - 215 = -32
-32 ÷ 215 = -0.14883720930232558
-0.14883720930232558 x 100 = -14.88%