1142.86% is the change from 7 to 87
Calculation steps:
[( 87 - 7 ) ÷ 7] x 100 = 1142.86%
Formula
Percentage change = [(87 - 7) / 7] x 100
Subtract the new number by the original number
87 - 7 = 80
80 ÷ 7 = 11.428571428571429
11.428571428571429 x 100 = 1142.86%