4711.11% is the change from 18 to 866
Calculation steps:
[( 866 - 18 ) ÷ 18] x 100 = 4711.11%
Formula
Percentage change = [(866 - 18) / 18] x 100
Subtract the new number by the original number
866 - 18 = 848
848 ÷ 18 = 47.111111111111114
47.111111111111114 x 100 = 4711.11%