853.33% is the change from 15 to 143
Calculation steps:
[( 143 - 15 ) ÷ 15] x 100 = 853.33%
Formula
Percentage change = [(143 - 15) / 15] x 100
Subtract the new number by the original number
143 - 15 = 128
128 ÷ 15 = 8.533333333333333
8.533333333333333 x 100 = 853.33%