45.54% is the change from 213 to 310
Calculation steps:
[( 310 - 213 ) ÷ 213] x 100 = 45.54%
Formula
Percentage change = [(310 - 213) / 213] x 100
Subtract the new number by the original number
310 - 213 = 97
97 ÷ 213 = 0.45539906103286387
0.45539906103286387 x 100 = 45.54%