77.39% is the change from 283 to 502
Calculation steps:
[( 502 - 283 ) ÷ 283] x 100 = 77.39%
Formula
Percentage change = [(502 - 283) / 283] x 100
Subtract the new number by the original number
502 - 283 = 219
219 ÷ 283 = 0.773851590106007
0.773851590106007 x 100 = 77.39%