36.75% is the change from 381 to 521
Calculation steps:
[( 521 - 381 ) ÷ 381] x 100 = 36.75%
Formula
Percentage change = [(521 - 381) / 381] x 100
Subtract the new number by the original number
521 - 381 = 140
140 ÷ 381 = 0.3674540682414698
0.3674540682414698 x 100 = 36.75%