219.67% is the change from 305 to 975
Calculation steps:
[( 975 - 305 ) ÷ 305] x 100 = 219.67%
Formula
Percentage change = [(975 - 305) / 305] x 100
Subtract the new number by the original number
975 - 305 = 670
670 ÷ 305 = 2.19672131147541
2.19672131147541 x 100 = 219.67%