1300% is the change from 50 to 700
Calculation steps:
[( 700 - 50 ) ÷ 50] x 100 = 1300%
Formula
Percentage change = [(700 - 50) / 50] x 100
Subtract the new number by the original number
700 - 50 = 650
650 ÷ 50 = 13
13 x 100 = 1300%
Example