212.5% is the change from 288 to 900
Calculation steps:
[( 900 - 288 ) ÷ 288] x 100 = 212.5%
Formula
Percentage change = [(900 - 288) / 288] x 100
Subtract the new number by the original number
900 - 288 = 612
612 ÷ 288 = 2.125
2.125 x 100 = 212.5%
Example