21.66% is the change from 771 to 938
Calculation steps:
[( 938 - 771 ) ÷ 771] x 100 = 21.66%
Formula
Percentage change = [(938 - 771) / 771] x 100
Subtract the new number by the original number
938 - 771 = 167
167 ÷ 771 = 0.21660181582360571
0.21660181582360571 x 100 = 21.66%