1498.04% is the change from 51 to 815
Calculation steps:
[( 815 - 51 ) ÷ 51] x 100 = 1498.04%
Formula
Percentage change = [(815 - 51) / 51] x 100
Subtract the new number by the original number
815 - 51 = 764
764 ÷ 51 = 14.980392156862745
14.980392156862745 x 100 = 1498.04%