156.7% is the change from 321 to 824
Calculation steps:
[( 824 - 321 ) ÷ 321] x 100 = 156.7%
Formula
Percentage change = [(824 - 321) / 321] x 100
Subtract the new number by the original number
824 - 321 = 503
503 ÷ 321 = 1.5669781931464175
1.5669781931464175 x 100 = 156.7%