144.6% is the change from 213 to 521
Calculation steps:
[( 521 - 213 ) ÷ 213] x 100 = 144.6%
Formula
Percentage change = [(521 - 213) / 213] x 100
Subtract the new number by the original number
521 - 213 = 308
308 ÷ 213 = 1.4460093896713615
1.4460093896713615 x 100 = 144.6%