220.97% is the change from 310 to 995
Calculation steps:
[( 995 - 310 ) ÷ 310] x 100 = 220.97%
Formula
Percentage change = [(995 - 310) / 310] x 100
Subtract the new number by the original number
995 - 310 = 685
685 ÷ 310 = 2.2096774193548385
2.2096774193548385 x 100 = 220.97%