-92.56% is the change from 215 to 16
Calculation steps:
[( 16 - 215 ) ÷ 215] x 100 = -92.56%
Formula
Percentage change = [(16 - 215) / 215] x 100
Subtract the new number by the original number
16 - 215 = -199
-199 ÷ 215 = -0.9255813953488372
-0.9255813953488372 x 100 = -92.56%