185.71% is the change from 7 to 20
Calculation steps:
[( 20 - 7 ) ÷ 7] x 100 = 185.71%
Formula
Percentage change = [(20 - 7) / 7] x 100
Subtract the new number by the original number
20 - 7 = 13
13 ÷ 7 = 1.8571428571428572
1.8571428571428572 x 100 = 185.71%