70.59% is the change from 221 to 377
Calculation steps:
[( 377 - 221 ) ÷ 221] x 100 = 70.59%
Formula
Percentage change = [(377 - 221) / 221] x 100
Subtract the new number by the original number
377 - 221 = 156
156 ÷ 221 = 0.7058823529411765
0.7058823529411765 x 100 = 70.59%