213.25% is the change from 166 to 520
Calculation steps:
[( 520 - 166 ) ÷ 166] x 100 = 213.25%
Formula
Percentage change = [(520 - 166) / 166] x 100
Subtract the new number by the original number
520 - 166 = 354
354 ÷ 166 = 2.1325301204819276
2.1325301204819276 x 100 = 213.25%