151% is the change from 200 to 502
Calculation steps:
[( 502 - 200 ) ÷ 200] x 100 = 151%
Formula
Percentage change = [(502 - 200) / 200] x 100
Subtract the new number by the original number
502 - 200 = 302
302 ÷ 200 = 1.51
1.51 x 100 = 151%
Example