21.5% is the change from 772 to 938
Calculation steps:
[( 938 - 772 ) ÷ 772] x 100 = 21.5%
Formula
Percentage change = [(938 - 772) / 772] x 100
Subtract the new number by the original number
938 - 772 = 166
166 ÷ 772 = 0.21502590673575128
0.21502590673575128 x 100 = 21.5%