290.25% is the change from 236 to 921
Calculation steps:
[( 921 - 236 ) ÷ 236] x 100 = 290.25%
Formula
Percentage change = [(921 - 236) / 236] x 100
Subtract the new number by the original number
921 - 236 = 685
685 ÷ 236 = 2.902542372881356
2.902542372881356 x 100 = 290.25%