2.21% is the change from 949 to 970
Calculation steps:
[( 970 - 949 ) ÷ 949] x 100 = 2.21%
Formula
Percentage change = [(970 - 949) / 949] x 100
Subtract the new number by the original number
970 - 949 = 21
21 ÷ 949 = 0.022128556375131718
0.022128556375131718 x 100 = 2.21%