2.27% is the change from 970 to 992
Calculation steps:
[( 992 - 970 ) ÷ 970] x 100 = 2.27%
Formula
Percentage change = [(992 - 970) / 970] x 100
Subtract the new number by the original number
992 - 970 = 22
22 ÷ 970 = 0.02268041237113402
0.02268041237113402 x 100 = 2.27%