-87.12% is the change from 264 to 34
Calculation steps:
[( 34 - 264 ) ÷ 264] x 100 = -87.12%
Formula
Percentage change = [(34 - 264) / 264] x 100
Subtract the new number by the original number
34 - 264 = -230
-230 ÷ 264 = -0.8712121212121212
-0.8712121212121212 x 100 = -87.12%