1503.7% is the change from 54 to 866
Calculation steps:
[( 866 - 54 ) ÷ 54] x 100 = 1503.7%
Formula
Percentage change = [(866 - 54) / 54] x 100
Subtract the new number by the original number
866 - 54 = 812
812 ÷ 54 = 15.037037037037036
15.037037037037036 x 100 = 1503.7%