-97.11% is the change from 277 to 8
Calculation steps:
[( 8 - 277 ) ÷ 277] x 100 = -97.11%
Formula
Percentage change = [(8 - 277) / 277] x 100
Subtract the new number by the original number
8 - 277 = -269
-269 ÷ 277 = -0.9711191335740073
-0.9711191335740073 x 100 = -97.11%