225% is the change from 300 to 975
Calculation steps:
[( 975 - 300 ) ÷ 300] x 100 = 225%
Formula
Percentage change = [(975 - 300) / 300] x 100
Subtract the new number by the original number
975 - 300 = 675
675 ÷ 300 = 2.25
2.25 x 100 = 225%
Example