214.52% is the change from 310 to 975
Calculation steps:
[( 975 - 310 ) ÷ 310] x 100 = 214.52%
Formula
Percentage change = [(975 - 310) / 310] x 100
Subtract the new number by the original number
975 - 310 = 665
665 ÷ 310 = 2.1451612903225805
2.1451612903225805 x 100 = 214.52%