66.77% is the change from 331 to 552
Calculation steps:
[( 552 - 331 ) ÷ 331] x 100 = 66.77%
Formula
Percentage change = [(552 - 331) / 331] x 100
Subtract the new number by the original number
552 - 331 = 221
221 ÷ 331 = 0.6676737160120846
0.6676737160120846 x 100 = 66.77%