-93.88% is the change from 245 to 15
Calculation steps:
[( 15 - 245 ) ÷ 245] x 100 = -93.88%
Formula
Percentage change = [(15 - 245) / 245] x 100
Subtract the new number by the original number
15 - 245 = -230
-230 ÷ 245 = -0.9387755102040817
-0.9387755102040817 x 100 = -93.88%