2937.5% is the change from 8 to 243
Calculation steps:
[( 243 - 8 ) ÷ 8] x 100 = 2937.5%
Formula
Percentage change = [(243 - 8) / 8] x 100
Subtract the new number by the original number
243 - 8 = 235
235 ÷ 8 = 29.375
29.375 x 100 = 2937.5%
Example