3371.43% is the change from 7 to 243
Calculation steps:
[( 243 - 7 ) ÷ 7] x 100 = 3371.43%
Formula
Percentage change = [(243 - 7) / 7] x 100
Subtract the new number by the original number
243 - 7 = 236
236 ÷ 7 = 33.714285714285715
33.714285714285715 x 100 = 3371.43%