21.61% is the change from 236 to 287
Calculation steps:
[( 287 - 236 ) ÷ 236] x 100 = 21.61%
Formula
Percentage change = [(287 - 236) / 236] x 100
Subtract the new number by the original number
287 - 236 = 51
51 ÷ 236 = 0.21610169491525424
0.21610169491525424 x 100 = 21.61%