1140% is the change from 50 to 620
Calculation steps:
[( 620 - 50 ) ÷ 50] x 100 = 1140%
Formula
Percentage change = [(620 - 50) / 50] x 100
Subtract the new number by the original number
620 - 50 = 570
570 ÷ 50 = 11.4
11.4 x 100 = 1140%
Example