64.85% is the change from 421 to 694
Calculation steps:
[( 694 - 421 ) ÷ 421] x 100 = 64.85%
Formula
Percentage change = [(694 - 421) / 421] x 100
Subtract the new number by the original number
694 - 421 = 273
273 ÷ 421 = 0.6484560570071259
0.6484560570071259 x 100 = 64.85%