150% is the change from 200 to 500
Calculation steps:
[( 500 - 200 ) ÷ 200] x 100 = 150%
Formula
Percentage change = [(500 - 200) / 200] x 100
Subtract the new number by the original number
500 - 200 = 300
300 ÷ 200 = 1.5
1.5 x 100 = 150%
Example