48.7% is the change from 538 to 800
Calculation steps:
[( 800 - 538 ) ÷ 538] x 100 = 48.7%
Formula
Percentage change = [(800 - 538) / 538] x 100
Subtract the new number by the original number
800 - 538 = 262
262 ÷ 538 = 0.48698884758364314
0.48698884758364314 x 100 = 48.7%